This study is aimed to analyze the steady of stagnation point flow and radiative heat transfer of a non-Newtonian fluid which is Casson fluid passing over an exponentially permeable slippery Riga plate in presence of thermal radiation, magnetic field, velocity slip, thermal slip, and viscous dissipation effects. The governing partial differential equations are transformed into ordinary differential equations by using similarity transformation then solved numerically by boundary value problem solver (BVP4C) in MATLAB software package. The numerical results are evaluated with previous researches to reach an agreement with the parameters of the current study. This study is discussing the behavior of the velocity and temperature profiles as well as skin friction coefficient and local Nusselt number for various physical parameters such as magnetic field, radiation, suction, thermal slip, velocity slip, Prandtl number, Eckert number and modified Hartmann number. Numerical results are shown graphically for each parameter with different values. It is found that the momentum boundary layer thickness increases with increasing the values of Casson parameter. The temperature decreases when the velocity slip parameter and thermal slip parameter are increased.

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Objective: This study aims to assess the accuracy of the linear measurements of intrabony and/or furcation defect quantified by cone beam computed tomography (CBCT). Material and Methods: A systematic search of the literature was conducted by two authors independently from the PubMed, Scopus, and EBSCO for full articles published in journals between January 2003 and March 2017. Eligible studies were assessed for quality and heterogeneity using the QUADAS-2 tool. A meta-analysis was performed to identify the accuracy of CBCT in the measurement of intrabony defects. The effect size was estimated and reported as the standardised mean difference (SMD). Results: A total of 105 titles and abstracts were screened. Of those, 11 articles met the inclusion criteria for the systematic review while only four were selected for metaanalysis. The overall effects of standardized mean difference and 95% CI was-0.03 [95% CI-0.67 to 0.60] with a x 2 statistic of 0.49 with 3 degrees of freedom (p>0.05), I 2 = 0.01%. Conclusion: CBCT is highly accurate and reproducible regarding linear measurements for assessing intrabony defects with a weighted standardized mean difference of 0.03mm. More randomised controlled trials are required to assess the accuracy of CBCT in assessing patients with periodontal defects.

Objective: This research aims to assess the impact on the Oral Health-Related Quality of Life (OHRQoL) in patients who had the missing teeth substituted with acrylic teeth during orthodontic treatment. Materials and Methods: Eighteen orthodontic patients aged between 18 and 35 years who had at least one missing tooth, and required prosthesis, were recruited. All patients were undergoing orthodontic treatment with fixed appliance for space opening and idealisation. Patient were randomly allocated into Group 1: Transbond XT adhesive only; Group 2: Transbond XT adhesive with surface sandblasting; Group 3: Transbond XT adhesive with surface abrasion; and Group 4: Triad Gel adhesive only. Upon achieving adequate space intraorally, the acrylic tooth was adjusted to required dimension. Subsequently, the corresponding metal bracket was attached to the labial surface using the different surface preparation prior to archwire ligation. The short version of Oral Health Impact Profile (S-OHIP-14) was used to measure the difference in OHRQoL between pre- (T0) and 6 months post-attachment (T1) of acrylic teeth. The patients were monitored monthly for six months. Results: The S-OHIP-14 for simple count (SC) and additive (ADD) scores method showed 28.3% and 40.4% improvement, respectively, although only the ADD method showed significance. Among all the domains, only the handicap domain showed the highest improvement (54.0%) which was statistically significant (p=0.001). Conclusion: There was an overall improvement in the orthodontic treatment outcome measure on the OHRQoL scores after six-months of having missing teeth substituted with acrylic teeth.