Comparison of marginal adaptation between all ceramic crown and full cast crown with two different luting cement (In Vitro study) | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 13, Issue 1, December 2016, Pages 19-24 | ||
| Authors | ||
| ; Dr. Salma Issa Alabudi B.D.S; Dr. Jinan Qassim; Dr. Shimaa Obied | ||
| Abstract | ||
| The purpose of this study was to determine and evaluate the micro leakage and fit of all ceramic crown and full cast metal crown using two different luting agent. Twenty four recently caries free wisdom teeth were used . The teeth were cleaned and checked with magnifying lens. Noticed any cracks or caries . Specimens remained in distilled water at room temperature . Each specimen were centrally inserted in cylinder 20mm height and 20mm internal diameter containing self curing acrylic resin . Preparation were completed at the dentin level of the cement -enamel junction with a chamfer finish line 1.2mm all round tooth . The height of preparation was 7mm with a convergence angle of six degree using diamond bur ( Germany, No 878, 2012) . Prepared teeth were divided in two main groups ( n=6) . Group A: All ceramic crown(12-Specimens) . Subdivided in two subgroup. A1:- ( 6) Specimens used the zinc-phosphate cement. A2:- (6) Specimens used resin cement . Group B :- Full cast crown (12-Specimens). Subdivided in tow subgroup Group B1 :-( 6 ) Specimens used zinc-phosphate cement Group B2:- (6 ) Specimens used resin cement . After 24hr of storage in distilled water at 37c , all the specimens immersed in 0.5% basic fuchcin dye for 24hr.Fallowing removal from the solution , each tooth was vertically sectioned bucco-lingually with water-cooled diamond disc . Stereomicroscope at 40 magnification was to study the extent of microleakge, which was indicated by the dye pentration recorded at both metal-cement(MC) and tooth-cement ( TC) interface . Microleakge was done according to the index proposed by Tjan etel[1] . The data of all 4 groups was analyzed with one-way analysis of variance with student T-test was used to compare the microleakage scores within the groups at both the interface. The data obtained in this study show statistically significant difference in microleakage level between group A and B and between subgroup of specimens. The conclusion of this study , resin cement recorded less micro leakage in both all ceramic crown, and metal cast crown Than zinc – phosphate cement , because The self curing nature with low curing rate, give rapid and superior adhesion to both dentin and restoration and better mechanical properties | ||
| Keywords | ||
| Key Words; Micro leakage; Bond Etch; Curing; ceramic | ||
|
Statistics Article View: 103 PDF Download: 74 |
||