Fig. 8. Photomicrographs of decalcified sections. a Untreated site. Woven bone formed from the sinus walls after 1 week of healing. b Treated site. After 8 weeks, woven bone was still found forming ridges towards residues of provisional matrix, showing that the healing was not completed yet. Scarlet-acid fuchsine and toluidine blue stain. a × 100 magnification. b × 20 magnification
...
Fig. 7. Box-plot representing the new bone percentage and standard deviations (whiskers) found in the various regions evaluated after 8 weeks of healing. (*), a statistical significant difference
Fig. 7. Box-plot representing the new bone percentage and standard deviations (whiskers) found in the various regions evaluated after 8 weeks of healing. (*), a statistical significant difference
Fig. 6. Photomicrographs of decalcified sections illustrating the healing after 8 weeks. a Treated site. Most of the antrostomies presented remaining defects in the outer contour. b, c Untreated sites. Two antrostomies of the treated sites and four of the untreated sites appeared not closed with corticalized bone and presented connective tissue interposed between the edges of the antrostomy. S...
Fig. 5. Photomicrographs of decalcified sections illustrating the healing after 8 weeks. Both at the treated (a) and untreated (b) sites, the antrostomy was closed in most cases, presenting residual defects of various dimensions in the outer side. New bone was connecting the lateral and medial sinus walls. The middle and sub-mucosa regions were not healed completely yet. Scarlet-acid fuchsine ...
Fig. 4. Photomicrographs of ground sections. a) Treated site. Bone residues (examples in yellow asterisks) included in soft tissue containing fibroblast-like cells and inflammatory cells. b) Untreated site. Xenograft residues (examples in red asterisks) surrounded by soft tissue rich in fibroblast-like cells. Scarlet-acid fuchsine and toluidine blue stain. a) 200 x magnification.; b) 100 x magni...
Fig. 3. Photomicrographs of decalcified sections illustrating the healing after 1 week. a Treated site. Bone strips occupying the antrostomy and the subjacent area (close-to-window region). b Untreated site. Note the new bone-forming from the sinus bone walls. Scarlet-acid fuchsine and toluidine blue stain. Images grabbed at × 20 magnification
Fig. 3. Photomicrographs of decalcified sect...
Fig. 2. The various regions evaluated at the histomorphometric analyses. Bone walls (red arrow); middle (white arrow); sub-mucosa (yellow arrow); close-to-window (orange arrow). The antrostomy region was also evaluated at the medial and lateral edges (dark green arrows) and in the middle aspect (light green arrow)
Fig. 2. The various regions evaluated at the histomorphometric analyses. Bone w...
Fig. 1. Clinical view of the surgical procedures. a Tibial bone exposed for autogenous bone harvesting using a bone scraper. b Antrostomies prepared. c Autogenous bone particles placed in the antrostomy. d Xenograft and bone particles (red arrow) at the antrostomies. e Collagen membranes placed on the antrostomies. f Wounds closed with sutures
Fig. 1. Clinical view of the surgical procedures....
AntrostomySinus regions EdgesCenterTotalClose-to-windowMiddleSub-mucosaBone wallsTotalNew boneTreated sites40.3 ± 21.337.8 (27.0;56.0)24.3 ± 23.222.0 (3.4;42.2)35.5 ± 20.927.7 (23.3;52.0)25.8* ± 16.122.9 (15.2;39.7)19.5 ± 16.711.7 (10.1;22.3)22.5 ± 11.620.4 (12.6;31.3)38.0 ± 15.044.8 (31.8;47.5)27.9 ± 12.930.1 (19.6;34.5)Untreated sites32.2 ± 22....
AntrostomySinus regions EdgesCenterTotalClose-to-windowMiddleSub-mucosaBone wallsTotalNew boneTreated sites9.2 ± 10.6 4.6 (3.2;12.5)5.2 ± 13.90.0 (0.0;0.5)7.7 ± 11.22.7 (1.9;7.9)0.6 ± 1.00.0 (0.0;0.7)0.0 ± 0.00.0 (0.0;0.0)1.4 ± 1.80.8 (0.0;2.2)7.7 ± 6.38.2 (1.3;11.1)2.8 ± 2.62.2 (0.7;4.0)Untreated sites8.9 ± 8.5 6.2 (4.0;10.8)1.0 ± 2.70.0 (0....
Favero, G., Viña-Almunia, J., Carda, C. et al. Influence of the use of autogenous bone particles to close the access window after maxillary sinus floor augmentation: an experimental study in rabbits.
Int J Implant Dent 6, 9 (2020). https://doi.org/10.1186/s40729-020-0206-2
Download citation
Received: 20 October 2019
Accepted: 21 January 2020
Published: 04 March 2020
DOI:...
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
The present research was approved by the Ethics Committee of Valencia University, Spain. Reference number: A1434714637496.
Not applicable.
Daniele Botticelli declares to be the co-owner of Ariminum Odontologica. Giacomo Favero, Jose Viña-Almunia, Carmen Carda, José Javier Martín de Llano, Berta García-Mira, David Soto-Peñaloza, Daniele Botticelli, and Miguel Peñarrocha-Diago declare that t...
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GF participated in the concept/design, data analysis/interpretation, drafting of the article and surgical procedures. JV-A performed the surgical procedures, made the follow up of the animals, participated in the manuscript revision and ethical committee redaction and approval. BG-M and DS-P performed the surgi...
Private practice, London, UK
Giacomo Favero
Oral Surgery Unit. Department of Stomatology, Faculty of Medicine and Dentistry, Clinica Odontológica, University of Valencia, Valencia, Spain
Jose Viña-Almunia, Berta García-Mira, David Soto-Peñaloza & Miguel Peñarrocha-Diago
Department of Pathology and Health Research Institute of the Hospital Clínico (INCLIVA), Faculty of Medicine and De...
Funds from the present have been provided by ARDEC Academy, by Ariminum Odontologica s.r.l., Rimini, Italy and Tecnoss srl, Giaveno, Italy. The biomaterials use were provided free of charge by Tecnoss srl, Giaveno, Italy.
Favero V, Lang NP, Canullo L, Urbizo Velez J, Bengazi F, Botticelli D. Sinus floor elevation outcomes following perforation of the Schneiderian membrane. An experimental study in sheep. Clin Oral Implants Res. 2016;27(2):233–40.
Scala A, Lang NP, Velez JU, Favero R, Bengazi F, Botticelli D. Effects of a collagen membrane positioned between augmentation material and the sinus mucosa in the eleva...
Kawakami S, Lang NP, Ferri M, Apaza Alccayhuaman KA, Botticelli D. Influence of the height of the antrostomy in sinus floor elevation assessed by cone beam computed tomography- a randomized clinical trial. Int J Oral Maxillofac Implants. 2019;34(1):223–32.
Kawakami S, Lang NP, Iida T, Ferri M, Apaza Alccayhuaman KA, Botticelli D. Influence of the position of the antrostomy in sinus floor elevat...
Tatum, H., Jr. Maxillary sinus grafting for endosseous implants. Lecture presented at the Annual Meeting of the Alabama Implant Study Group (1977); cited in Smiler, D.G., Johnson, P.W., Lozada, J.L., Misch, C., Rosenlicht, J.L., Tatum, O.H. Jr. & Wagner J.R. Sinus lift grafts and endosseous implants. Treatment of the atrophic posterior maxilla. Dental clinics of North America. 1992;36:151–186.
...
Animal Research Reporting In Vivo Experiments
Cone beam computed tomography
Deproteinized bovine bone mineral
Tricalcium phosphate
The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.
The lower phylogenetic level of the animals compared to humans was the main limitation of the present study. An increased number of animals might allow reaching a statistical difference in favor of the treated sites also in the antrostomy region. Nevertheless, the outcomes obtained, allow to performing studies in humans that might demonstrate the advantages of applying autologous bone on the antro...
In both studies presented above on sinus floor elevation in sheep, all the lateral windows were prepared using a piezoelectric device. In an experiment in rabbits [21], the antrostomies were done with either a sonic instrument or drills to evaluate differences in bone formation in the antrostomy. Elevated space is filled with a collagenated porcine bone similar that used in the present experiment,...
The present experiment aimed to study the influence on the healing after the placement of autogenous bone on the antrostomy and in the subjacent region after maxillary sinus elevation. After 8 weeks of healing, in the antrostomy region, a trend of higher bone formation in the treated compared to the untreated sites was observed. No statistically significant difference was found. In the subjacent ...
After 1 week of healing (Table 1), in the close-to-window region, the proportions of xenograft were 21.3 ± 14.7% and 55.9 ± 19.0 (p = 0.012) in the treated and untreated sites, respectively. After 8 weeks of healing (Table 2), these values decreased to a similar percentage (15.5 ± 14.4% and to 15.5 ± 14.2%; p = 0.917, respectively).
After 1 week of healing (Table...
Biopsies could be harvested from all animals. However, histological sections could not be obtained from one rabbit of the 8 weeks group; therefore, eight and seven were achieved for the 1-week and 8-week periods, respectively.
After 1 week of healing, at the treated sites, the antrostomy and close-to-windows regions were occupied by a high proportion of residues of autogenous bone (Fig. 3a),...
Overlapping calibrated digital images of the tissues were recorded with Leica Applications Suite version 4.4.0 software from a bright field Leica DM4000 B microscope (Leica Microsystems GmbH, Wëtzlar, Germany) equipped with a 5× lens and DFC420 digital camera. Single images were pasted and merged to compose each elevated sinus using the program Photoshop (Adobe Photoshop CC 2015.0.0).
The histo...
Afterward, a trichotomy was performed in the nasal dorsum and, after disinfection of the experimental region using Betadine (MEDA Pharma®, Madrid, Spain), a sagittal incision was carried out. The skin and the periosteum were dissected and shifted laterally to expose the nasal bone. Antrostomies, 4 × 4 mm in dimensions, located about 3–4 mm laterally to the midline and about 10 mm in f...
Prior to the experiment, the protocol was approved by the Ethics Committee of Valencia University, Spain (A1434714637496). The guidelines indicated by the Council Directive of the European Union (53/2013; February 1, 2013) for animal experimentation and the ethical rules proposed by Royal Decree 223, March 14 and October 13, 1988, were fulfilled. The study was reported following the ARRIVE guideli...
Hence, the present experiment aimed to study the influence on healing, of the autogenous bone particle placement in the antrostomy and in the subjacent region after maxillary sinus elevation.
Maxillary sinus floor elevation through lateral access was first proposed in 1977 [1], while the technique was published in 1984 [2]. Several modifications in the surgical approach and the biomaterials used have been introduced over time [3,4,5]. In a systematic review with meta-analysis, it was concluded that the best survival rate was observed when implants with rough surface and membrane to cov...
To study the influence on the healing of the placement of particulate autogenous bone in the antrostomy and in the subjacent region after maxillary sinus elevation.
Sixteen New Zealand rabbits were undergone to bilateral maxillary sinus floor augmentation with 4 × 4 mm antrostomy dimension. The sinus mucosa was elevated, and the space obtained was filled with xenograft. In the test site (tr...
Fig. 8. Photomicrographs of decalcified sections. a Untreated site. Woven bone formed from the sinus walls after 1 week of healing. b Treated site. After 8 weeks, woven bone was still found forming ridges towards residues of provisional matrix, showing that the healing was not completed yet. Scarlet-acid fuchsine and toluidine blue stain. a × 100 magnification. b × 20 magnification
...
Fig. 7. Box-plot representing the new bone percentage and standard deviations (whiskers) found in the various regions evaluated after 8 weeks of healing. (*), a statistical significant difference
Fig. 7. Box-plot representing the new bone percentage and standard deviations (whiskers) found in the various regions evaluated after 8 weeks of healing. (*), a statistical significant difference
Fig. 6. Photomicrographs of decalcified sections illustrating the healing after 8 weeks. a Treated site. Most of the antrostomies presented remaining defects in the outer contour. b, c Untreated sites. Two antrostomies of the treated sites and four of the untreated sites appeared not closed with corticalized bone and presented connective tissue interposed between the edges of the antrostomy. S...
Fig. 5. Photomicrographs of decalcified sections illustrating the healing after 8 weeks. Both at the treated (a) and untreated (b) sites, the antrostomy was closed in most cases, presenting residual defects of various dimensions in the outer side. New bone was connecting the lateral and medial sinus walls. The middle and sub-mucosa regions were not healed completely yet. Scarlet-acid fuchsine ...
Fig. 4. Photomicrographs of ground sections. a) Treated site. Bone residues (examples in yellow asterisks) included in soft tissue containing fibroblast-like cells and inflammatory cells. b) Untreated site. Xenograft residues (examples in red asterisks) surrounded by soft tissue rich in fibroblast-like cells. Scarlet-acid fuchsine and toluidine blue stain. a) 200 x magnification.; b) 100 x magni...
Fig. 3. Photomicrographs of decalcified sections illustrating the healing after 1 week. a Treated site. Bone strips occupying the antrostomy and the subjacent area (close-to-window region). b Untreated site. Note the new bone-forming from the sinus bone walls. Scarlet-acid fuchsine and toluidine blue stain. Images grabbed at × 20 magnification
Fig. 3. Photomicrographs of decalcified sect...
Fig. 2. The various regions evaluated at the histomorphometric analyses. Bone walls (red arrow); middle (white arrow); sub-mucosa (yellow arrow); close-to-window (orange arrow). The antrostomy region was also evaluated at the medial and lateral edges (dark green arrows) and in the middle aspect (light green arrow)
Fig. 2. The various regions evaluated at the histomorphometric analyses. Bone w...
Fig. 1. Clinical view of the surgical procedures. a Tibial bone exposed for autogenous bone harvesting using a bone scraper. b Antrostomies prepared. c Autogenous bone particles placed in the antrostomy. d Xenograft and bone particles (red arrow) at the antrostomies. e Collagen membranes placed on the antrostomies. f Wounds closed with sutures
Fig. 1. Clinical view of the surgical procedures....
AntrostomySinus regions EdgesCenterTotalClose-to-windowMiddleSub-mucosaBone wallsTotalNew boneTreated sites40.3 ± 21.337.8 (27.0;56.0)24.3 ± 23.222.0 (3.4;42.2)35.5 ± 20.927.7 (23.3;52.0)25.8* ± 16.122.9 (15.2;39.7)19.5 ± 16.711.7 (10.1;22.3)22.5 ± 11.620.4 (12.6;31.3)38.0 ± 15.044.8 (31.8;47.5)27.9 ± 12.930.1 (19.6;34.5)Untreated sites32.2 ± 22....
AntrostomySinus regions EdgesCenterTotalClose-to-windowMiddleSub-mucosaBone wallsTotalNew boneTreated sites9.2 ± 10.6 4.6 (3.2;12.5)5.2 ± 13.90.0 (0.0;0.5)7.7 ± 11.22.7 (1.9;7.9)0.6 ± 1.00.0 (0.0;0.7)0.0 ± 0.00.0 (0.0;0.0)1.4 ± 1.80.8 (0.0;2.2)7.7 ± 6.38.2 (1.3;11.1)2.8 ± 2.62.2 (0.7;4.0)Untreated sites8.9 ± 8.5 6.2 (4.0;10.8)1.0 ± 2.70.0 (0....
Favero, G., Viña-Almunia, J., Carda, C. et al. Influence of the use of autogenous bone particles to close the access window after maxillary sinus floor augmentation: an experimental study in rabbits.
Int J Implant Dent 6, 9 (2020). https://doi.org/10.1186/s40729-020-0206-2
Download citation
Received: 20 October 2019
Accepted: 21 January 2020
Published: 04 March 2020
DOI:...
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were m...
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
The present research was approved by the Ethics Committee of Valencia University, Spain. Reference number: A1434714637496.
Not applicable.
Daniele Botticelli declares to be the co-owner of Ariminum Odontologica. Giacomo Favero, Jose Viña-Almunia, Carmen Carda, José Javier Martín de Llano, Berta García-Mira, David Soto-Peñaloza, Daniele Botticelli, and Miguel Peñarrocha-Diago declare that t...
You can also search for this author in
PubMed Google Scholar
GF participated in the concept/design, data analysis/interpretation, drafting of the article and surgical procedures. JV-A performed the surgical procedures, made the follow up of the animals, participated in the manuscript revision and ethical committee redaction and approval. BG-M and DS-P performed the surgi...
Private practice, London, UK
Giacomo Favero
Oral Surgery Unit. Department of Stomatology, Faculty of Medicine and Dentistry, Clinica Odontológica, University of Valencia, Valencia, Spain
Jose Viña-Almunia, Berta García-Mira, David Soto-Peñaloza & Miguel Peñarrocha-Diago
Department of Pathology and Health Research Institute of the Hospital Clínico (INCLIVA), Faculty of Medicine and De...
Funds from the present have been provided by ARDEC Academy, by Ariminum Odontologica s.r.l., Rimini, Italy and Tecnoss srl, Giaveno, Italy. The biomaterials use were provided free of charge by Tecnoss srl, Giaveno, Italy.
Favero V, Lang NP, Canullo L, Urbizo Velez J, Bengazi F, Botticelli D. Sinus floor elevation outcomes following perforation of the Schneiderian membrane. An experimental study in sheep. Clin Oral Implants Res. 2016;27(2):233–40.
Scala A, Lang NP, Velez JU, Favero R, Bengazi F, Botticelli D. Effects of a collagen membrane positioned between augmentation material and the sinus mucosa in the eleva...
Kawakami S, Lang NP, Ferri M, Apaza Alccayhuaman KA, Botticelli D. Influence of the height of the antrostomy in sinus floor elevation assessed by cone beam computed tomography- a randomized clinical trial. Int J Oral Maxillofac Implants. 2019;34(1):223–32.
Kawakami S, Lang NP, Iida T, Ferri M, Apaza Alccayhuaman KA, Botticelli D. Influence of the position of the antrostomy in sinus floor elevat...
Tatum, H., Jr. Maxillary sinus grafting for endosseous implants. Lecture presented at the Annual Meeting of the Alabama Implant Study Group (1977); cited in Smiler, D.G., Johnson, P.W., Lozada, J.L., Misch, C., Rosenlicht, J.L., Tatum, O.H. Jr. & Wagner J.R. Sinus lift grafts and endosseous implants. Treatment of the atrophic posterior maxilla. Dental clinics of North America. 1992;36:151–186.
...
Animal Research Reporting In Vivo Experiments
Cone beam computed tomography
Deproteinized bovine bone mineral
Tricalcium phosphate
The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.
The lower phylogenetic level of the animals compared to humans was the main limitation of the present study. An increased number of animals might allow reaching a statistical difference in favor of the treated sites also in the antrostomy region. Nevertheless, the outcomes obtained, allow to performing studies in humans that might demonstrate the advantages of applying autologous bone on the antro...
In both studies presented above on sinus floor elevation in sheep, all the lateral windows were prepared using a piezoelectric device. In an experiment in rabbits [21], the antrostomies were done with either a sonic instrument or drills to evaluate differences in bone formation in the antrostomy. Elevated space is filled with a collagenated porcine bone similar that used in the present experiment,...
The present experiment aimed to study the influence on the healing after the placement of autogenous bone on the antrostomy and in the subjacent region after maxillary sinus elevation. After 8 weeks of healing, in the antrostomy region, a trend of higher bone formation in the treated compared to the untreated sites was observed. No statistically significant difference was found. In the subjacent ...
After 1 week of healing (Table 1), in the close-to-window region, the proportions of xenograft were 21.3 ± 14.7% and 55.9 ± 19.0 (p = 0.012) in the treated and untreated sites, respectively. After 8 weeks of healing (Table 2), these values decreased to a similar percentage (15.5 ± 14.4% and to 15.5 ± 14.2%; p = 0.917, respectively).
After 1 week of healing (Table...
Biopsies could be harvested from all animals. However, histological sections could not be obtained from one rabbit of the 8 weeks group; therefore, eight and seven were achieved for the 1-week and 8-week periods, respectively.
After 1 week of healing, at the treated sites, the antrostomy and close-to-windows regions were occupied by a high proportion of residues of autogenous bone (Fig. 3a),...
Overlapping calibrated digital images of the tissues were recorded with Leica Applications Suite version 4.4.0 software from a bright field Leica DM4000 B microscope (Leica Microsystems GmbH, Wëtzlar, Germany) equipped with a 5× lens and DFC420 digital camera. Single images were pasted and merged to compose each elevated sinus using the program Photoshop (Adobe Photoshop CC 2015.0.0).
The histo...
Afterward, a trichotomy was performed in the nasal dorsum and, after disinfection of the experimental region using Betadine (MEDA Pharma®, Madrid, Spain), a sagittal incision was carried out. The skin and the periosteum were dissected and shifted laterally to expose the nasal bone. Antrostomies, 4 × 4 mm in dimensions, located about 3–4 mm laterally to the midline and about 10 mm in f...
Prior to the experiment, the protocol was approved by the Ethics Committee of Valencia University, Spain (A1434714637496). The guidelines indicated by the Council Directive of the European Union (53/2013; February 1, 2013) for animal experimentation and the ethical rules proposed by Royal Decree 223, March 14 and October 13, 1988, were fulfilled. The study was reported following the ARRIVE guideli...
Hence, the present experiment aimed to study the influence on healing, of the autogenous bone particle placement in the antrostomy and in the subjacent region after maxillary sinus elevation.
Maxillary sinus floor elevation through lateral access was first proposed in 1977 [1], while the technique was published in 1984 [2]. Several modifications in the surgical approach and the biomaterials used have been introduced over time [3,4,5]. In a systematic review with meta-analysis, it was concluded that the best survival rate was observed when implants with rough surface and membrane to cov...
To study the influence on the healing of the placement of particulate autogenous bone in the antrostomy and in the subjacent region after maxillary sinus elevation.
Sixteen New Zealand rabbits were undergone to bilateral maxillary sinus floor augmentation with 4 × 4 mm antrostomy dimension. The sinus mucosa was elevated, and the space obtained was filled with xenograft. In the test site (tr...
RDX
No RDX
Author
Year of publication
No. of implants placed into autogenous bone grafts with RDX (and failures)
Overall implant survival of implants placed into autogenous bone grafts with RDX
No. of patients who had implants placed into autogenous bone grafts with RDX (and failures)
Patient based implant survival of implant placed into autogenous bone grafts with RDX
No. of...
Non-vascularised bone graft
Vascularised bone graft
Author
Year of publication
No. of patients who had implants placed into non-vascularised autogenous bone grafts (and failures)
Overall patient implant survival in non-vascularised autogenous bone grafts
No. of implants placed into non-vascularised autogenous bone grafts (and failures)
Overall implant survival in non-vasculari...
Implant survival
Implant success
Author
Year of publication
Donor site of autogenous bone graft
Radiotherapy/chemotherapy to bone graft site
Complications
No. of patients who had implants placed into autogenous bone grafts (and failures)
Overall patient implant survival in autogenous bone grafts
No. of implants placed into autogenous bone grafts (and failures)
Overall i...
Author
Year of publication
Study design
Outcome measure
Criteria—survival
Criteria—success
Quality assessment using the MINORS assessment tool
Head and neck cancer diagnosis
Patients age range
Follow-up period
Implant site
Implant system
Implant placement protocol
Prosthodontic rehabilitation
Studies with an average follow-up of 3 years or greater
Watzinger et...
Figure 1. Flow chart of study selection procedure
References
Schoen PJ, Reintsema H, Raghoebar GM, Vissink A, Roodenburg JLN. The use of implant retained mandibular prostheses in the oral rehabilitation of head and neck cancer patients. A review and rationale for treatment planning. Oral Oncol. 2004;40:862–71.
Müller F, Schädler M, Wahlmann U, Newton JP. The use of implant-supported prostheses in the functional and psychosocial rehabi...
Conclusion
Within the limitations of the current review, it can be concluded that implant survival in autogenous bone grafts in H&N oncology patients appears to be promising with implant survival being reported at over 80% in 16 of the 20 studies included with 11 of these reporting implant survival of over 90% in follow-up ranging from 3 months [28] to 15 years [5]. However, there i...
A clear deficiency of many of the studies was the imprecise and inconsistent definitions of implant survival or implant success, as detailed in Table 1. In addition, in a number of studies, the terminology ‘implant success’ and ‘implant survival’ were used interchangeably within the narrative making comparison of the studies challenging and rendering statistical analysis of the surv...
The implant placement protocol with regard to primary (immediate) or secondary (delayed) implant placement was also reviewed, and there is limited evidence from Fenlon et al. that implant failure is significantly worse in immediately placed implants in comparison with a delayed approach in free vascularized grafts.
Implant success was shown to be lower than implant survival and was related ...
Discussion
Summary of evidence
Dental implants are now perceived to be a vital part of the clinician’s armamentarium in the provision of oral and dental rehabilitation for patients with acquired deformity following management of their H&N cancer, and therefore, this systematic review is relevant to clinicians and stakeholders involved in the treatment and management of H&N cancer patient...
Six of these studies (Schultes et al., Wang et al., Zou et al., Chiapasco et al., Chiapasco et al., Wu et al.) reported some of this lack of success to the peri-implant soft tissue which was most frequently the soft tissue component of a combined bone and soft tissue free flap (most commonly the external skin).
Complications
A variety of implant-based complications were documented. Complicatio...
Implant survival and Peri-implant soft tissue
Only one study (Linsen et al. ) reported on the effect of the peri-implant soft tissue and implant survival of implants placed into autogenous bone grafts. Linsen et al. reported a higher implant failure of implants placed into bone and soft tissue grafts in comparison to implants placed into a bone grafts with residual soft tissues. This difference...
However, in two studies (Teoh et al., Burgess et al.), no statistical significance was found despite higher implant failure.
Primary and secondary implant placement and implant survival
Six studies clearly reported the use of both primary and secondary implant placement within their study (Fenlon et al., Ch’ng et al., Zou et al., Burgess et al., Watzinger et al., Wu et al.); however, only on...
Two studies (Fenlon et al., Burgess et al. ) reported no significant effect on implant survival in varying graft donor sites; however, three studies (Hessling et al., Shaw et al., Chiapasco et al.) reported varying implant survival rates within different autogenous bone grafts but only one study (Hessling et al.) reported that implant loss was significant with this being for implants placed into...
Autogenous bone graft type and implant survival
Seventeen studies reported on the specific bone graft type (non-vascularised or vascularised) into which the implants were placed. In the remaining three studies (Buddula et al., Fierz et al., Yerit et al.), this distinction was not possible.
Of these 17 studies, 8 studies reported on implant survival in non-vascularised bone grafts and 14 studie...
The surgical and loading implant protocols were reported in 17 studies with no description given in 3 studies (Barrowman et al., Fierz et al., Hessling et al.). The implant placement protocols were diverse with variables including the use of surgical templates/guides, primary and/or secondary implant placement following autogenous bone grafting, and immediate and/or delayed implant loading; howe...
These 20 studies were published over a range of 21 years (1996 to 2017) and provide cumulative data on 1905 implants placed into autogenous bone grafts in H&N cancer patients with both benign and malignant tumours being reported. The exact patient number for this intervention within some of the studies was unclear as a result of the studies reporting on implant rather than patient number or ther...
Results
Study selection
Searches of EMBASE, the Cochrane Central Register of Controlled Trials, Science Direct and MEDLINE generated 619 articles. After duplicate articles were removed, 566 unique articles were remaining. After the review of the titles and abstracts, 151 articles were accepted for further consideration, and 415 were rejected. After the full text was attained and reviewed for t...
Data items
Data was collected for implant survival, implant success, implant failure, implant complications, surgical implant placement protocol, implant system used, clinical follow-up, how the author defined success/survival, the type of autogenous bone graft, implant site, the prosthodontic rehabilitation and type of cancer, and the use of radiotherapy were documented where possible.
Risk of ...
Information sources
Four electronic databases were used to systematically search the available literature: (1) The National Library of Medicine (MEDLINE via PubMed), (2) EMBASE, (3) Cochrane Central Register of Controlled Trials and (4) Science Direct. The searches were limited to studies involving human subjects and publication dates from January 1980 to August 2017 that satisfied the inclusion ...
Methods
Protocol
The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) for describing and summarising the results of our review was used.
A quality assessment of all selected full-text articles was performed using the Methodological Index for Non-Randomized Studies (MINORS) assessment tool to assess the risk of bias of the included studies. The MINORS scoring list co...
Introduction
Rationale
The use of implants to retain prostheses as part of oral and dental rehabilitation of head and neck (H&N) cancer patients is becoming an increasingly common treatment approach. A number of benefits advocating implant anchorage over conventionally secured prostheses have been proposed but importantly include a significant improvement in the reported quality of life (QoL) of...
Survival of dental implants placed in autogenous bone grafts and bone flaps in head and neck oncology patients: a systematic review
Abstract
Using implants to retain prostheses as part of the oral rehabilitation of head and neck cancer patients is an increasingly common treatment modality, particularly in transported bone which is used to reconstruct defects following oncological surgical ...