Results : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [1]
None of the 10 patients showed postoperative inflammation or infection after the MSFE procedure nor during surgical re-entry for dental implant placement. When opening the area for dental implant insertion, the grafted area proved to be well vascularized and the tissue at the site of the former trap-door location was slightly flexible and had a fibrous aspect. Between the periosteum and the bone graft area, adhesions were seen. Macroscopically, no voids or presence of purulent discharge were observed. Although a demarcation was observed between the grafted area and the original bone of the alveolar process, there was continuity between the grafted area and the native bone. There was no jiggling of the drill, even though bone substitute particles could still be recognized in the tissue specimen retrieved. All particles appeared well integrated in newly formed tissue. These findings were consistent in all 10 patients. In total, 22 Straumann® SLA solid screw (standard plus regular neck, soft tissue level) dental implants with a diameter of 4.1 mm and a length of 10 or 12 mm were placed. Primary stability was achieved with all dental implants. All dental implants osseointegrated well and could be loaded with fixed prostheses 3 months after implant surgery. No dental implants were lost during 5-year follow-up.
The increase in height of the grafted area achieved by the MSFE procedure was on an average of 7.5 mm (SD ±2.8) in the 9-month group (Table 1) and 9.3 mm (SD ±3.1) in the 12-month group (Table 2). The measured tissue height appeared to be stable between 1 and 5 years in the 9-month group (Fig. 2) and the 12-month group (Fig. 3).
The histological evaluation was performed on the complete section, comprising native bone, newly formed bone, and residual graft material. The BCP particles were surrounded by connective tissue, osteoid islands, and newly formed bone. From the residual bone in all specimens, new bone formation was detected following the scaffold of the bone substitute, starting in cranial direction. This newly formed bone consisted of woven bone as well as lamellar bone and appeared as vital bone tissue containing osteoblasts, osteoid covering the border, and osteocytes inside bone lacunae. Cranially, near the lifted trap-door, some osteoid islands with osteogenic activity were detected.
Serial posts:
- Abstract : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times
- Background : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [1]
- Background : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [2]
- Methods : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [1]
- Methods : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [2]
- Methods : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [3]
- Methods : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [4]
- Results : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [1]
- Results : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [2]
- Discussion : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [1]
- Discussion : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [2]
- Conclusions : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times
- References : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [1]
- References : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [2]
- References : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [3]
- References : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [4]
- Author information : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times [1]
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- Table 1 Alveolar tissue height measurements on panoramic radiographs (in true mm) in the 9-month group : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times
- Table 2 Radiological results (alveolar tissue height measurements in true mm) in the 12-month group : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times
- Table 3 Histomorphometric evaluation of the biopsies after a 9-month healing time : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times
- Table 4 Histomorphometric evaluation of the biopsies after a 12-month healing time : The use of a biphasic calcium phosphate in a maxillary sinus floor elevation procedure: a clinical, radiological, histological, and histomorphometric evaluation with 9- and 12-month healing times
- Fig. 1. Images of patient # 5 (9-month healing time). a. Radiograph of the left maxillary sinus: situation 9 months after the maxillary sinus floor elevation procedure. b. With a trephine drill, the implant osteotomy is made and the biopsy is obtained. c. Clinical situation after placing two Straumann® SLA implants in the left posterior maxilla. d. Radiograph of two Straumann® SLA implants in the left posterior maxilla : The use of a biphasic calcium phosphate in a maxil
- Fig. 2. Aveolar tissue height (in true mm) over a 5-year period in the 9-month group : The use of a biphasic calcium phosphate in a maxil
- Fig. 3. Alveolar tissue height (in true mm) over a 5-year period in the 12-month group : The use of a biphasic calcium phosphate in a maxil
- Fig. 4. Patient # 1 (12-month healing time): overview of a typical example of a bone biopsy stained with Goldner trichrome staining (magnification ×10) : The use of a biphasic calcium phosphate in a maxil
- Fig. 5. Patient # 4 (9-month healing time): increased bone formation following the shape of the grafted particles stained with Goldner trichrome staining (magnification ×100) : The use of a biphasic calcium phosphate in a maxil
- Fig. 6. Patient # 1 (12-month healing time): increased bone formation following the shape of the grafted particles that are still present (magnification ×100) : The use of a biphasic calcium phosphate in a maxil