Oral Biology and Oral Pathology Commons^™

The Effect Of Preparation Design And Thermal Cycling On The Marginal Accuracy Of Hybrid Ceramic Laminate Veneers, Esraa El Bably, Ossama Saleh Abdelghany, Mostafa Aboushahba, Shereen Ahmed Nossair

Future Dental Journal

Aim: This study investigated the effect of preparation design and thermal cycling on the marginal accuracy of hybrid ceramic laminate veneers. Materials and Methods: A total of twenty 3D printed dies of central incisors prepared with 2 preparation designs; butt joint and palatal wrap design were fabricated. Each type of preparation was assigned into 2 subgroups (n=5/each subgroup) according to the type of material used for fabrication of the laminate veneer; hybrid ceramic and lithium disilicate (served as control). Marginal discrepancy was evaluated using a digital microscope before and after thermocycling. Results: Statistically analysis of marginal gaps revealed that before …

Measuring Accuracy Of Dolphin Imaging Software In Predicting Upper Jaw Soft Tissue Profile Changes In Class Ii Adult Patients Treated With Extraction Versus Non-Extraction., Amr Amin Arif, Esam Nasef, Amira Aboalnaga

Future Dental Journal

Abstract

Objective: To assess the accuracy of Dolphin Imaging software in predicting upper jaw profile changes in class II patients treated by extraction and non-extraction.

Methods: The records of 60 Class II div 1 patients were selected; 30 patients treated by extraction of upper first premolar and 30 patients treated by non-extraction. The Pre- and post-treatment lateral cephalometric x-rays of each patient were traced using Dolphin software. The actual hard tissue changes due to treatment were calculated and installed into the prediction module to generate the predicted profile. The soft tissue measurements of the actual post-treatment and predicted profiles were …