title: In in-vitro evaluation of effect of different finish lines on marginal adaptation in metal-ceramic restorations under thermo-mechanical loading.
abstract: The aim of this study was to evaluate the marginal gap in terms of cement film thickness associated with shoulder, shoulder with 45° bevel, shoulder with 30° bevel and chamfer, under thermo-mechanical loading. Forty human mandibular molars were prepared and restored with ceramo-metal crowns. Teeth were thermo-mechanically loaded and vertically sectioned to evaluate the cement film thickness. Shoulder with 45° bevel provided the least marginal gap as compared with all the tested finish lines.
authors: Department of Prosthodontics, Institute of Dental Sciences and Technology, Modinagar, India. ridhim@gmail.com
authors: Ridhima
authors: R
authors: Gupta
mesh_terms: D001732:Bite Force; D003442:Crowns; D003722:Dental Alloys / Q000737:chemistry; D018772:Dental Marginal Adaptation; D003799:Dental Stress Analysis / Q000295:instrumentation; D006801:Humans; D008422:Materials Testing; D016876:Metal Ceramic Alloys / Q000737:chemistry*; D008853:Microscopy; D008963:Molar / Q000033:anatomy & histology; D010165:Palladium / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D012834:Silver / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D019228:Tooth Crown / Q000033:anatomy & histology; D019246:Tooth Preparation / Q000145:classification* / Q000379:methods
chemical_list: C433205:Calibra; D003722:Dental Alloys; D016876:Metal Ceramic Alloys; D019279:Resin Cements; D012834:Silver; D010165:Palladium