Aim:This study compares clinically and radiographically between efficacies of two different bone graft materials with amniotic membrane in narrow alveolar ridges subjected to ridge expansion by ultrasonic bone surgery to receive simultaneous implant placement. Subjects and Methods: Twenty-two systemically healthy patients with partial edentulous narrow anterior maxillary ridge classified randomly into the following equal groups: Group Ι patients with partial edentulous narrow ridge; treated by ridge splitting technique and simultaneous implant placement into their ridge; associated with deproteinized bovine bone (Bio-Oss ®) and amniotic membrane. Group II patients with partial edentulous narrow ridge; treated by ridge splitting technique and simultaneous implant placement into their ridge; associated with hydroxyapatite and 40% beta-tricalcium phosphate (easy-graft™ crystal) and amniotic membrane. Evaluation of implant success rate was done, and the clinical parameters were recorded for all implants. Implant stability quotient (ISQ) values was recorded. Efficacy of regenerative materials was observed by evaluation of marginal bone level and bone density. Results: Alveolar ridge width was increased in all groups. The mean value of alveolar ridge width in group I 3.64 mm ±0.3 at baseline that increased to 6.90mm ±0.6. The mean value of Alveolar ridge width in group II was 4.17 mm ±0.7at baseline that increased to 6.65 mm ±0.4. Group II showed the highest ISQ, bone density and the lowest marginal bone loss values after twelve months of implant placement. Conclusion: The use of piezo-electric surgery with bone grafting as sole tool for ridge splitting is promising technique.

Aim: This study aims to evaluate clinically the effect of probiotic treatment on localized aggressive periodontitis patients. Subjects and methods: This study was designed as a randomized, controlled, split mouth clinical trial, carried out on localized aggressive periodontitis (LAP) which having almost two identical sites with clinical probing depth of ≥ 5 mm. Two contralateral sites were randomly divided into two groups, Group I: received conventional periodontal treatment, scaling and root planning combined with topical application of probiotic. Group II: received conventional periodontal treatment, scaling and root planning only. Patients were evaluated clinically using the following parameters: plaque index (PI), gingival index (GI), probing pocket depth (PPD) and clinical attachment level (CAL) and radiographically by radiographic bone density (pixel) at baseline, 3, 6, and 9 months. Results: Clinical and radiographic results of this study showed that: there were a significant reduction for assessed variables (Plaque Index, gingival index, probing pocket depth and clinical attachment level and significant increase in radiographic bone density in probiotic group compared to group II. Conclusion: Adjunctive use of topically applied probiotic appeared to be beneficial effect in localized aggressive periodontitis patients when compared with scaling and root planning alone.