Correlation of ABO Blood Groups and Rh Factor with The Severity of Generalized Chronic Periodontitis: Across Sectional Study in Riyadh, Saudi Arabia.

Background: The development of periodontal diseases depends on the presence of causative microorganisms, host immunity and risk factors. Although variability present among the types of periodontal diseases, all are represented to a shared interaction between host and bacteria. ABO blood groups are the most investigated erythrocyte antigen system.

Gingivitis and plaque prevention using three commercially available dentifrices: A comparative clinical and microbiological randomized control parallel study.

Aim: The aim of the study was to compare the clinical and microbiological efficacy of Group I-delmopinol dentifrice, Group II-chlorhexidine, and Group III-triclosan-containing regularly used control dentifrice on plaque formation and gingivitis.

Materials And Methods: A total of 45 healthy volunteer students fulfilling the inclusion criteria are recruited for this randomized control parallel study. All the individuals were randomly assigned into 3 groups depending on the dentifrice prescribed.

Comparing Laser and Scalpel for Soft Tissue Crown Lengthening: A Clinical Study.

Crown lengthening procedure is aimed at exposure of sufficient crown structure accomplished by a gingivectomy, an apically positioned flap with osseous resection or the use of lasers. Our present clinical study is aimed to assess the clinical effectiveness of a diode laser for functional crown lengthening procedure and to compare it with the conventional procedure using the scalpel. Fourteen patients including males and females, aged 20- 40 years were recruited and divided into two groups to undergo crown lengthening either with the scalpel or the laser.

Effect of hyperbaric oxygen profiles on the bond strength of repaired composite resin.

Objective: This study was performed to evaluate the bond strength of repaired three types of composite resins under various hyperbaric oxygen (HBO) profiles with various session numbers.

Materials And Methods: Sixty specimens of three types of composite resin (nanofilled composite, nanohybrid composite and microfilled composite) each type of composite was divided into four group according to various profiles of HBO treatment (control, 2bar, 3 bar and 5 bar). Then, the specimens were repaired; thermocycled, the tensile bond strength were measured.

Periodontal Health Condition and Associated Factors among University Students, Yemen.

Introduction: Studies on oral health status among Yemeni population are scarce.

Aim: This study aimed to evaluate the periodontal health among advantaged section of Yemeni society, university students, in health and non-health fields.

Materials And Methods: Periodontal health status of a sample of 360 students from dental, medical and literature faculties (120 each with equal gender distribution) at Sana'a University was evaluated by two calibrated examiners using CPI index.