Fig. 5. OPG postoperatively
Fig. 5. OPG postoperatively
Fig. 4. Wound healing after 2 months
Fig. 4. Wound healing after 2 months
Fig. 3. Mobilised segment moved to the desired three-dimensional position and fixed with plate and screws
Fig. 3. Mobilised segment moved to the desired three-dimensional position and fixed with plate and screws
Fig. 2. Mandibular osteotomy by piezosurgery
Fig. 2. Mandibular osteotomy by piezosurgery
Fig. 1. Tunnel technique
Fig. 1. Tunnel technique
Santagata, M., Sgaramella, N., Ferrieri, I. et al. Segmental sandwich osteotomy and tunnel technique for three-dimensional reconstruction of the jaw atrophy: a case report. Int J Implant Dent 3, 14 (2017). https://doi.org/10.1186/s40729-017-0077-3
Download citation
Received: 23 December 2016
Accepted: 22 April 2017
Published: 01 May 2017
DOI: https://doi.org/10.1186/s40729-017-0077-3
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...
Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU - University of Campania “Luigi Vanvitelli”, Naples, Italy
Mario Santagata, Nicola Sgaramella, Ivo Ferrieri, Giovanni Corvo, Gianpaolo Tartaro & Salvatore D’Amato
Piazza Fuori Sant′Anna 17, 81031, Aversa, Italy
Mario Santagata
You can also search for this author in PubMed Goo...
None.
None.
All authors were involved with the literature review and performance of the surgery. All authors read and approved the final manuscript.
Mario Santagata, Nicola Sgaramella, Ivo Ferrieri, Giovanni Corvo, Gianpaolo Tartaro and Salvatore D’Amato declare that they have no competing interests.
Written informed consent was obtained from the patient for the publication of this report an...
Moura LB, Carvalho PH, Xavier CB, Post LK, Torriani MA, Santagata M, Chagas Júnior OL. Autogenous non-vascularized bone graft in segmental mandibular reconstruction: a systematic review. Int J Oral Maxillofac Surg. 2016;45:1388–94.
D'Amato S, Tartaro G, Itro A, Nastri L, Santagata M. Block versus particulate/titanium mesh for ridge augmentation for mandibular lateral incisor defects: clinical ...
In conclusion, segmental mandibular sandwich osteotomy is an easy and safety technique that could be performed in atrophic posterior mandible.
Future studies involving long-term follow-up are needed to evaluate the permanence of these results.
The sandwich technique for bone augmentation of the atrophic mandible was first described by Schettler and Holtermann, with promising results. Since then, variations in this surgical procedure have been proposed by several investigators [4,5,6,7,8,9,10].
All these authors have proposed the same approach about the flap: paracrestal incision. In order to preserve the blood supply, it is of fundamen...
A 59-year-old woman with a severely atrophied right mandible was treated with the sandwich osteotomy technique filled with autologous bone graft harvested by a cortical bone collector from the ramus.
The requirements of the Helsinki Declaration were observed, and the patient gave informed consent for all surgical procedures. After local infiltration of anaesthesia (mepivacaina plus adrenaline 1:2...
In cases of atrophic mandible, the distance to the mandibular canal and the transverse decrease in bone is an anatomic limitation for prosthetic rehabilitation with dental implants. The gold standard for treatment of this mandibular atrophy continues to be autologous bone grafting [1, 2].
A relatively modern technique for vertical bone augmentation is sandwich osteotomy. Schettler and Holtermann ...
Segmental mandibular sandwich osteotomy is an easy and safety technique that could be performed in an atrophic posterior mandible. Future studies involving long-term follow-up are needed to evaluate the permanence of these results.
A three-dimensionally favourable mandibular bone crest is desirable to be able to successfully implant placement to meet the aesthetic and functional criteria in the implant-prosthetic rehabilitation. Several surgical procedures have been advocated for bone augmentation of the atrophic mandible, and the sandwich osteotomy is one of these techniques. The aim of the present case report was to assess...
Santagata, M., Sgaramella, N., Ferrieri, I. et al. Segmental sandwich osteotomy and tunnel technique for three-dimensional reconstruction of the jaw atrophy: a case report.
Int J Implant Dent 3, 14 (2017). https://doi.org/10.1186/s40729-017-0077-3
Download citation
Received: 23 December 2016
Accepted: 22 April 2017
Published: 01 May 2017
DOI: https://doi.org/10.1186/s4072...
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...
Multidisciplinary Department of Medical and Dental Specialties, Oral and Maxillofacial Surgery Unit, AOU - University of Campania “Luigi Vanvitelli”, Naples, Italy
Mario Santagata, Nicola Sgaramella, Ivo Ferrieri, Giovanni Corvo, Gianpaolo Tartaro & Salvatore D’Amato
Piazza Fuori Sant′Anna 17, 81031, Aversa, Italy
Mario Santagata
You can also search for this author in
...
None.
None.
All authors were involved with the literature review and performance of the surgery. All authors read and approved the final manuscript.
Mario Santagata, Nicola Sgaramella, Ivo Ferrieri, Giovanni Corvo, Gianpaolo Tartaro and Salvatore D’Amato declare that they have no competing interests.
Written informed consent was obtained from the patient for the publication of this report an...
Moura LB, Carvalho PH, Xavier CB, Post LK, Torriani MA, Santagata M, Chagas Júnior OL. Autogenous non-vascularized bone graft in segmental mandibular reconstruction: a systematic review. Int J Oral Maxillofac Surg. 2016;45:1388–94.
D'Amato S, Tartaro G, Itro A, Nastri L, Santagata M. Block versus particulate/titanium mesh for ridge augmentation for mandibular lateral incisor defects: clinical ...
In conclusion, segmental mandibular sandwich osteotomy is an easy and safety technique that could be performed in atrophic posterior mandible.
Future studies involving long-term follow-up are needed to evaluate the permanence of these results.
The sandwich technique for bone augmentation of the atrophic mandible was first described by Schettler and Holtermann, with promising results. Since then, variations in this surgical procedure have been proposed by several investigators [4,5,6,7,8,9,10].
All these authors have proposed the same approach about the flap: paracrestal incision. In order to preserve the blood supply, it is of fundamen...
A 59-year-old woman with a severely atrophied right mandible was treated with the sandwich osteotomy technique filled with autologous bone graft harvested by a cortical bone collector from the ramus.
The requirements of the Helsinki Declaration were observed, and the patient gave informed consent for all surgical procedures. After local infiltration of anaesthesia (mepivacaina plus adrenaline 1:2...
In cases of atrophic mandible, the distance to the mandibular canal and the transverse decrease in bone is an anatomic limitation for prosthetic rehabilitation with dental implants. The gold standard for treatment of this mandibular atrophy continues to be autologous bone grafting [1, 2].
A relatively modern technique for vertical bone augmentation is sandwich osteotomy. Schettler and Holtermann ...
Segmental mandibular sandwich osteotomy is an easy and safety technique that could be performed in an atrophic posterior mandible. Future studies involving long-term follow-up are needed to evaluate the permanence of these results.
A three-dimensionally favourable mandibular bone crest is desirable to be able to successfully implant placement to meet the aesthetic and functional criteria in the implant-prosthetic rehabilitation. Several surgical procedures have been advocated for bone augmentation of the atrophic mandible, and the sandwich osteotomy is one of these techniques. The aim of the present case report was to assess...
Sleeve length
Clearance
Total length
Offset
Error at the apex
− 0.1854
0.0037
0.0453
Error at the neck
− 0.1041
0.0018
0.0461
Table 4 Error at the neck (mm)
Sleeve length (mm)
Clearance (μm)
Offset (mm)
6
7
8
9
10
11
12
13
14
15
16
17
4
50
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.2
80
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
110
0.1
0.1
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.4
0.4
0.4
140
0.1
0.2
0.2
0.2
0.3
0.3
0.4
0.4
0.4...
Table 3 Error at the apex (mm) and deviation of implant axis (degrees) for sleeve lengths 6 and 7 mm
Sleeve length (mm)
Clearance (μm)
Deviation (°)
Total length (mm)
16
17
18
19
20
21
22
23
24
25
26
27
28
29
6
50
0.5
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
80
0.8
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3...
Table 2 Error at the apex (mm) and deviation of implant axis (°) for sleeve lengths 4 and 5 mm
Sleeve length (mm)
Clearance (μm)
Deviation (degrees)
Total length (mm)
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
4.00
50.00
0.72
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
80.00
1.15
0.2
0.3
0.3
0.3
0.3...
Table 1 Range of various maximum permissible errors as calculated in the present study
Axis deviation (°)
Error at the neck (mm)
Error at the apex (mm)
Vertical error at the apex (mm)
Min
0.4
0.1
0.1
0.0
Max
5.9
1.5
2.8
0.1
Figure 2. The various errors in implant positioning
Figure 1. The parameters used for the calculation of the various errors and the deviation of implant axis
Figure 1. The parameters used for the calculation of the various errors and the deviation of implant axis
Abbreviations
3d:
Three dimensional
CAD:
Computer-aided design
CAM:
Computer-aided manufacturing
CBCT:
Cone beam computed tomography
CI:
Confidence interval
CT:
Computed tomography
Dicom:
Digital imaging and communications in medicine
FDM:
Fused deposition modelling
GIS:
Guided implant surgery
SLA:
Stereolithography apparatus
STL...
Discussion
The purpose of a computer designed and computer manufactured (CAD/CAM) surgical guide is to provide the means for an accurate and reliable transfer of the computer-realised virtual treatment plan to the actual surgical field. The availability of the CBCT imaging modality should have led to an explosion of the usage of these guides, since they have been shown to be...
Results
The range of the various maximum permissible errors due to the metal sleeve/osteotomy drill combination is presented in Table 1.
Concerning the error at the apex, two reference tables were reported (Tables 2 and 3). In these tables, the deviation of the implant axis was also tabulated. A separate table (Table 4) tabulated the error at the neck.
Multiple regression ...
Based on the geometric analysis of the problem in hand, an algorithm was developed and implemented in C programming language. The purpose of this program was to readily and accurately compute the following maximum positioning errors, permissible by the different sleeve/drill/guide properties (Fig. 2):
1. Deviation of the implant axis in degrees,
2. Error at the neck in mm,
2. Er...
Methods
For the estimation of the errors in implant positioning due to the properties of the metal sleeve/osteotomy drill combination, four parameters are necessary: (1) sleeve length, (2) clearance (space between the bur and the sleeve), (3) implant length, and (4) offset (distance of the lip of the metal sleeve to the neck of the implant) (Figs. 1 and 2).
Definitions
Basic...
Background
Computer-aided designed and computer-aided manufactured (CAD/CAM) implant surgical guides are long recommended to reliably transfer a virtual treatment plan to the surgical field. The 3d-printed guide stands a basic part of a process commonly referred to as guided implant surgery (GIS). The outcome of this process has been shown to be relatively accurate, even when th...
CAD/CAM implant surgical guides: maximum errors in implant positioning attributable to the properties of the metal sleeve/osteotomy drill combination
Abstract
Background
The purpose of this study is to provide the relevant equations and the reference tables needed for calculating the maximum errors in implant positioning attributed to the properties of the mechanical parts of any CAD/CAM ...