Clinical Update quiz
The Clinical Update online is a free member service providing up to 11 FREE CPD hours per year.
Each month, the Clinical Update is published online. There are 11 Clinical Updates per year (February - December). This service is available to ADAVB and ADATas members only. Members can log in to view and answer the Clinical Update questions. If you answer at least eight out of 10 questions correctly, you will receive one hour of scientific CPD.
Please note: Each new Clinical Update will be available below from the first business day of each month.
February Clinical Update
Impact of matrix systems on proximal contact tightness and surface geometry in Class II direct composite restoration in-vitro
Tolba ZO, Oraby E, Abd El Aziz PM. Impact of matrix systems on proximal contact tightness and surface geometry in class II direct composite restoration in-vitro. BMC Oral Health. 2023 Aug 2;23(1):535.
Compiled by Dr Nirav Bhatia
Background
Class II direct composite restorations in posterior teeth require tight, anatomically correct proximal contacts to prevent issues such as food impaction, tooth migration, and caries. Improper contact can also lead to periodontal damage if excessively tight or loose. Effective restorations involve both adequate proximal contact tightness and correct contour formation. Several techniques such as using high-viscosity composite, separation ring systems, and pre-contoured matrix bands aim to enhance contour and tightness. The matrix system itself has a significant effect on the success of these restorations. Sectional matrices combined with separating rings are the gold standard in achieving reliable contact tightness; however, they may lead to a concave morphology at the contact area. Traditional circumferential matrices often have limited success in forming tight contacts and anatomic contours. The recently introduced Palodent 360 circumferential matrix system offers pre-contoured, thin bands with an integrated tightening mechanism, designed for ease of use and efficient restorations with optimal contouring. This study aimed to evaluate whether the Palodent 360 system provides comparable proximal contact tightness and contour quality to the sectional matrix system with separation rings.
Members click here to continue reading and complete this month's Clinical Update questions online or download the current quiz below.
February Clinical Update | pdf
