Timing of implant placement and augmentation with bone replacement material: clinical assessment at 8 and 16 months

Sinus augmentation procedure via the lateral window technique-Reducing invasiveness and preventing complications: A narrative review

Sinus augmentation has become an integrated surgical phase in posterior maxillary implant prosthesis reconstruction. Since the residual alveolar bony height usually requires additional volume particularly at this anatomical region, sinus floor augmentation is advocated routinely. Over the years, Implant success rate is proved to be comparable to the one in the pristine bone, which is well documented in the literature. Anatomical aspects as well as surgeon skills are at most importance to achieve predictable outcome. In this narrative review, the different osteotomy techniques, the indications toward 1 or 2-stage approaches, the control of the Schneiderian membrane integrity as well as the management of intra- and post-operative complications are thoroughly discussed according the current data. In light of the excellent long-term implant success rate concurrent with the application of contemporary advanced techniques of the sinus augmentation via the lateral wall osteotomy approach, reduce invasiveness and less complication occurrences are well documented. A well-codified patient selection involving the rhinologist as an integral medical team would be significantly beneficial toward early diagnosis. In-depth knowledge of the anatomy, execution of a well standardized surgical technique, and understanding the complication etiology and their management are prerequisites for reducing patient morbidity to minimal discomfort and predictable successful outcome.

Vertical Bone Implant Contact Around Anterior Immediate Implants and Their Stability After Using Either Alloplast or L-PRF or Both in Peri-Implant Gap: A Prospective Randomized Trial

Purpose

Various graft materials have been studied for filling peri-implant gap (PIG), but there was no similar randomized clinical trial to evaluate the effect of Platelet-rich fibrin or alloplast or their combination on vertical bone implant contact (BIC) around immediate implants and their stability over a period of 1 year.

Methods

Immediate implants were placed in maxillary anterior region of 30 subjects (n = 10). Either alloplast (group I) or L-PRF (group II) or both (group III) were used to fill the PIG following randomization chart. Vertical BIC was measured on peri-apical radiographs which were taken immediately after placement, after 3, 6 and 12 months using Image J software. Periotest was used to measure the implant stability at the time of implant placement, at 3, 6 and 12 months after implantation.

Results

The comparison of distance from implant shoulder to the first visible bone-to-implant contact (IS-BIC) in each group showed statistically significant bone formation on mesial and distal sides over a 1 year period (p < 0.05). There was no significant difference in IS-BIC distance among the three groups at 1 year (p > 0.05). Periotest values showed that there was significant improvement in implant stability in all groups in 1-year period. On intergroup comparison, the mean difference of periotest values was statistically non-significant among three groups (p > 0.05).

Conclusions

All the graft materials were effective in promoting osseointegration when used as PIG filling materials alone or in combination around immediate implants in maxillary anterior region.

CTRI No

REF/2015/06/009200.