{"id":19108,"date":"2026-07-14T06:42:09","date_gmt":"2026-07-14T06:42:09","guid":{"rendered":"https:\/\/su.edu.ye\/cd\/?p=19108"},"modified":"2026-07-14T09:05:39","modified_gmt":"2026-07-14T09:05:39","slug":"masters-degree-awarded-to-researcher-rina-al-maamari-for-study-on-cad-cam-fabricated-temporary-crowns","status":"publish","type":"post","link":"https:\/\/su.edu.ye\/cd\/en\/19108\/","title":{"rendered":"Master\u2019s Degree Awarded to Researcher Rina Al-Maamari for Study on CAD\/CAM-Fabricated Temporary Crowns"},"content":{"rendered":"

Researcher Rina Wadea Abdulaziz Al-Maamari <\/strong>was awarded a Master\u2019s Degree in Conservative Dentistry <\/strong>for her thesis titled: Evaluation of Microleakage in PMMA Temporary Crowns Fabricated Using CAD\/CAM Technology and the Conventional Technique<\/em><\/strong>, <\/em>which was submitted to the Department of Conservative Dentistry, Faculty of Dentistry\u2013 Sana\u2019a University. The MA defense was held on Tuesday, June 30, 2026\u200e\u200e.<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

The MA Viva-voce Committee, which was formed based on a resolution issued by the Graduate Studies and Scientific Research Council, consisted of the following:<\/p>\n\n\n\n\n\n\n
#<\/strong><\/td>\nCommittee Members<\/strong><\/td>\nDesignation<\/strong><\/td>\nPosition<\/strong><\/td>\n<\/tr>\n
1<\/td>\nAssoc. Prof.<\/strong> Mohsen Ali Yahya Al-Hamzi<\/strong><\/td>\nInternal Examiner<\/td>\nChair<\/td>\n<\/tr>\n
2<\/td>\nDr. Mohammed Abdulaziz Mansour Al-Baili<\/strong><\/td>\nMain Supervisor<\/td>\nMember<\/td>\n<\/tr>\n
3<\/td>\nAssoc. Prof.<\/strong> Fadhel Ali Abdullah Al-Sanbani<\/strong><\/td>\nExternal Examiner<\/td>\nMember<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

The study generally aimed to evaluate and compare the marginal microleakage of long-term provisional crowns fabricated from polymethyl methacrylate (PMMA) using the conventional technique and Computer-Aided Design\/Computer-Aided Manufacturing (CAD\/CAM) technology.<\/p>\n

The study sets to achieve the following specific objectives:<\/p>\n

    \n
  1. To compare the degree of marginal microleakage between CAD\/CAM-fabricated crowns and conventionally fabricated crowns.<\/li>\n
  2. To assess the effect of surface location (buccal and lingual) on microleakage within each group.<\/li>\n
  3. To perform a statistical comparison of microleakage scores across the different crown surfaces.<\/li>\n<\/ol>\n

    The findings demonstrated the superior performance of the CAD\/CAM group, which exhibited significantly lower microleakage scores than the conventional group (p = 0.050). The buccal surfaces also showed lower microleakage than the lingual surfaces in both groups.<\/p>\n

    Regarding the occlusal surface, no microleakage was observed in the CAD\/CAM group, whereas the conventional group exhibited more severe microleakage extending to the occlusal surface. The study further identified statistically significant differences in favor of the CAD\/CAM group on the buccal surfaces, while the differences observed on the lingual surfaces were not statistically significant.<\/p>\n

    The study recommended conducting further research using larger sample sizes and different margin designs, undertaking long-term clinical studies, simulating oral conditions through thermal and mechanical aging, comparing additional fabrication techniques such as three-dimensional (3D) printing, evaluating different temporary luting cements and their effect on microleakage, and assessing the cost-effectiveness of CAD\/CAM technology compared with conventional fabrication methods.<\/p>\n

    The thesis defense was attended by faculty members, researchers, and students of the Faculty of Dentistry, as well as the researcher’s colleagues and family members.<\/p>\n

    \"\" \"\"<\/p>\n