Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2018 Mar 8;8(3):123-130.
doi: 10.11138/ads/2017.8.3.123. eCollection Sep-Dec 2017.

The Three-Dimensional Reconstruction of the Jaw With "Bone Slat Technique" in Conjunction With Third Molar Removal

Affiliations
Free PMC article

The Three-Dimensional Reconstruction of the Jaw With "Bone Slat Technique" in Conjunction With Third Molar Removal

Mario Santagata et al. Ann Stomatol (Roma). .
Free PMC article

Abstract

Background: The purpose of this study was to report the outcome of the management of both horizontal and vertical defects of alveolar crest using the bone slat technique approach in conjunction with third molar removal prior to implant placement in the aesthetic area.

Methods: We present a 20-year-old female patient who lost a maxillary lateral incisor. The objective of treatment was to replace the lateral incisor with an implant-supported crown restoration without interfering with the integrity and topography of the adjacent gingival tissues. Because the future implant site showed horizontal and vertical bone defect the Authors decided to perform bone regeneration. The need for such bone augmentation in the younger patient often coincides with the timing for third molar removal. By combining third molar extraction with bone harvest and alveolar grafting, the patient undergoes only one surgical approach. The bone height (9.5 mm) and width (5.7 mm) were measured at the point of interest (tooth 12) both before and after implant placement in the reconstructed panoramic and parasagittal views by Cone Beam Computed Tomography (CBCT) scan.

Results: The final results demonstrated an increase in length of 5 mm after bone slat technique (from 9.5 mm to 13.5 mm) and an increase in width of 1 mm (from 5.7 mm to 6.7 mm). ISQ measurements were recorded at the time of implant placement (the mean was: 68.5) and immediately after individualized screw-retained provisional crown (the mean was: 77).

Conclusions: This technique is reliable and aesthetic and functional results appear to be stable and respect this requisite: simple and fast graft harvesting and low risk of morbidity especially in conjunction with third molar removal.

Keywords: alveolar bone grafting; alveolar ridge augmentation; bone slat technique; esthetics.

Conflict of interest statement

Conflict of interest No potential conflict of interest relevant to this article was reported.

Figures

Figure 1
Figure 1
Clinical preoperative situation. Preoperative panoramic radiographic analysis.
Figure 2
Figure 2
Presurgical CBCT study in the area of maxillary right lateral incisor.
Figure 3
Figure 3
The bony defect was measured using a periodontal probe to determine the size of the bone shells.
Figure 4
Figure 4
A thin chisel is gently tapped along the entire length of the external oblique osteotomy, taking care to parallel the lateral surface of the ramus. This technique leaves intact the bone medullary of the mandible preserving the integrity of the underlying mandibular nerve.
Figure 5
Figure 5
The bone slats were anchored in the host bone with titanium microscrews.
Figure 6
Figure 6
Space between the bone slats and the alveolar bone was filled with bone chips.
Figure 7
Figure 7
The CBCT scan showed reconstruction of both buccal and palatal plate and improvement of bone density from (32 HU) to (92 HU) according to Misch’s classification.
Figure 8
Figure 8
The final results demonstrated an increase in lenght of 5 mm after bone graft (from 9.5 to 13.5 mm) and an increase in width of 1 mm after bone augmentation (from 5.7 to 6.7 mm).
Figure 9
Figure 9
The osteosynthesis titanium microscrews were removed.
Figure 10
Figure 10
A correct 3-D positioning of the implant was performed. At the time of surgery, small-diameter healing abutments were placed.
Figure 11
Figure 11
After 5 months post-op, one screw-retained provisional crown was delivered.
Figure 12
Figure 12
The CBCT scan showed reconstruction of both buccal and palatal plate and improvement of bone density from D5 (92 HU) to D2 (1246 HU) according to Misch’s classification.
Figure 13
Figure 13
The final results demonstrated an increase in length of 5 mm after bone graft (from 9.5 mm to 13.5 mm) and an increase in width of 1 mm after bone augmentation (from 5.7 mm to 6.7 mm).

Similar articles

See all similar articles

LinkOut - more resources

Feedback