Abstract
Purpose:The aim of this investigation was to assess bone healing of sinus lift procedure in which the augmentation has been performed by using calcium sulphate like bone substitutes. The methods of this investigation how the use of Cone Beam Computed Tomography (CBCT) may be a valid instrument to support reconstructive surgery of the jaws.Patients and Methodology:25 Patients presented large bone defects after tooth extractions located in the upper jaw posterior area. Vertical bone volume was assessed by CBCT examinations before and about six months after sinus lift surgery. Results:Examined defects treated with sinus lift surgery and evaluated by CBCT showed a strong increasing on the bone volume at 6 months follow up control.Conclusion:Calcium sulphate application in sinus lift surgery represent a safe and predictable option in the place of autologous bone. Therefore the application of CBCT investigation may give the clinicians the opportunity of evaluating with high precision value, the consistence of the bone defects before the surgery.
Highlights
The maxillary sinus is a pyramid-shaped cavity occupying the body of the maxilla, laterally surrounded by the nasal wall
It was observed that the mean vertical residual bone before surgery was 4,04 ± 1,48 mm while the mean of regenerated sites was 12,25 ± 3,20 mm, so the mean of bone gain was 8,21 ± 1,73 mm. These results suggest that the use of Calcium Sulphate (CaS) as bone filler in sinus lift augmentation determines a good improve of amount of available bone
There are different surgical methods for performing the sinus augmentation; the factors that contribute to the survival rate of sinus augmentation and dental implant placement are still the subject of discussion
Summary
The maxillary sinus is a pyramid-shaped cavity occupying the body of the maxilla, laterally surrounded by the nasal wall. The sinus lift surgery by using a lateral window with Boyne and James technique is still today the most reliable procedure for the bone volume reconstruction of the maxillary atrophic ridge. Sinus augmentation has evolved into a predictable and common surgical modality for increasing the existing height with bone of sufficient quality to allow predictable long term positioning of dental implants. This surgery is a relative safe procedure, but numerous complications may occur as a consequence of improper surgical plan or connected with too aggressive surgical manoeuvres. Even if the Autologous bone have been considered the gold standard in all the bone regenerative techniques, the morbidity caused from the double surgical site has suggested the clinicians to develop other procedures using alloplastic, heterologous materials, and growth factors. [3,4,5,6,7] The goal of this treatment is to obtain sufficient amount
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