COMPARATIVE STUDY OF VERTICAL MARGINAL FIT ON IMPLANT ABUTMENT USING METAL CERAMIC CROWNS, FULL CONTOUR ZIRCONIA CROWNS (CAD/CAM) AND VENEERED ZIRCONIA CROWNS (CAD/CAM) (AN IN VITRO STUDY)
Journal Title: World Journal of Pharmaceutical Research - Year 2017, Vol 6, Issue 10
Abstract
Background: Marginal fitness is an important factor in success and longevity of implant – retained restoration. Poor fitness and too large discrepancy lead to seepage of debris, cement dissolution and microbial colonization which lead to peri- implant inflammation and failure of implant restoration. Objective: To evaluate and compare vertical marginal fit among three materials used in construction crowns in the dental implant (metal- ceramic- full contour zirconia- veneered zirconia crowns. Material and method:- Four implant abutment on maxillary cast with first premolar and first molar (right & left )on both side receive thirty crowns on were divided into three group :-Group A:-10 samples were constructed with metal ceramic crowns used lost wax technique .Group B:-10 samples were constructed with full- contour zirconia crowns used (Imes –Icore) CAD-CAM system. Group C:-10 samples were constructed with veneered zirconia crowns used (Imes –Icore) CAD-CAM system. Vertical marginal gaps were measured at four points on each tooth surface. Sixteen points per tooth sample were measured using a digital microscope at a magnification of (230X).The marginal discrepancy found by use the mean of this sixteen points the Comparison of significance among the different groups using (Kruskal-Wallis H) test showed a statistically highly significant differences (p < 0.000). Furthermore, comparison of significance between each pair of groups using Paired-Samples, (Mann-Whitney U) showed statistically highly significant differences (p < 0.000). Results: The results of this study revealed that the least marginal gaps were, recorded at full contour zirconia crowns using CORETIC 250i (Imes –Icore) CAD-CAM system (39,239 -+26,575 um) and highest marginal gap were recorded at metal ceramic crowns using lost wax technique (92,513-+32,466 um) and veneered zirconia crowns were between of them (68,433-+40,346 um).In conclusion, full contour zirconia crowns constructed with CAD-CAM system provided better marginal fit and showed smaller marginal gap compare with metal ceramic crowns and veneered zirconia crowns.
Authors and Affiliations
Inas K. Mohammed and Asst. Prof. , Dr. Sabiha M. Kanaan
Keywords
Related Articles
- EP ID EP673764
- DOI -
- Views 152
- Downloads 0
PREVALENCE OF OBESITY AMONG SAMPLE OF COLLEGE STUDENTS
Background: Obesity and overweight are considered a public health problem due to their high prevalence in different age groups, mainly in young adults, as well as the short, medium, and long term consequences of obesity,...
ROLE AND OVERVIEW OF DRUG REGULATORY AFFAIRS IN PHARMACEUTICAL INDUSTRY WITH IMPLEMENTATION OF CTD AND ECTD
Drug Regulatory affairs is a vital unit in a pharmaceutical Industry. As the Pharmaceutical sector is rising very rapidly, there is a need of regulatory affairs professionals to provide the current needs of industries fo...
PHYTOCHEMICAL AND ETHNOPHARMACOLOGICAL REVIEW OF TUDRI SURKH (CHEIRANTHUS CHEIRI)
Background and Aims: The traditional system of medicine continues to play an essential role in health care management. A number of plant origin drugs are utilized in Unani system of medicine for the treatment of various...
LUTEINIZING HORMONE AND FOLLICULAR STIMULATING HORMONE LEVELS AFTER SUCCESSFUL KIDNEY TRANSPLANTATION IN SUDANESE MALE
Male patients with chronic kidney disease often exhibit the biological and clinical hallmarks of an abnormal hypothalamus–pituitary–gonadal axis. It is known that dialysis does not reverse this impaired endocrine status,...
KNOWLEDGE, ATTITUDE AND PRACTICE AMONG SAUDI POPULATION OF URINARY TRACT STONES AND THEIR RADIOLOGICAL DIAGNOSTIC METHODS, SAUDI ARABIA, 2018
Background: Urolithiasis is an ordinary complication with a growing incidence and occurrence worldwide. Urinary tract stone occurs from either migrated renal calculi or urinary stasis. It can further be divided into prim...