Pergamos - Library and Information Center of National and Kapodistrian University of Athens

Unit:

Κατεύθυνση Υλικά Οδοντικής Τεχνολογίας
Βιβλιοθήκη Οδοντιατρικής

Deposit date:

2019-06-26

Year:

2019

Author:

Nikolopoulos Michail

Supervisors info:

Παναγιώτα Τσόλκα, Αναπληρώτρια Καθηγήτρια, Τμήμα Βιοϊατρικών Επιστημών, Σχολή Επιστημών Υγείας και Πρόνοιας, Πανεπιστήμιο Δυτικής Αττικής
Σταύρος Γιαννικάκης, Καθηγητής, Τμήμα Βιοϊατρικών Επιστημών, Σχολή Επιστημών Υγείας και Πρόνοιας, Πανεπιστήμιο Δυτικής Αττικής
Τριαντάφυλλος Παπαδόπουλος, Καθηγητής, Τμήμα Οδοντιατρικής, Σχολή Επιστημών Υγείας, ΕΚΠΑ

Original Title:

Σύγκριση αυχενικής εφαρμογής σκελετών Co-Cr επιεμφυτευματικών συγκολλούμενων μεταλλοκεραμικών στεφανών κατασκευασμένων με την χρήση της τεχνολογίας CAD/CAM

Languages:

Greek

Translated title:

Evaluation of marginal fit of Co-Cr frameworks of implant-cemented metal ceramic crowns fabricated with the use of CAD/CAM technology

Summary:

The Co-Cr frameworks of implant-cemented metal ceramic crowns can be fabricated using four different manufacturing techniques. However, with which manufacturing technique has these Co-Cr frameworks the best marginal fit is unclear.
Purpose: The purpose of this in vitro study was to compare the marginal fit of Co-Cr frameworks of implant-cemented metal ceramic crowns fabricated with four different manufacturing techniques: Conventional casting, Soft milling, Hard milling and Selective laser melting.
Material and methods: A total of fourty (40) Co-Cr frameworks of a first upper molar implant-cemented metal ceramic crown were fabricated with four different manufacturing techniques: casting, soft milling, hard milling and selective laser melting. Four groups were created according to the fabrication method, within ten (10) Co-Cr frameworks in each group. The measurement method of marginal discrepancy which used was the direct view technique. At each framework a total of 4 different marginal discrepancy measurements were done and the average of these values recorded as the marginal discrepancy of this framework. For the statistical analysis was used 1-way analysis of variance with Tukey post hoc test (α=0.05).
Results: The marginal discrepancy values had statistically significant difference (P≤0.001) among the comparison groups. There was no statistically significant difference (P>0.05) among the marginal discrepancy values of soft milling and selective laser melting groups.
Conclusions: The Co-Cr frameworks of implant-cemented metal ceramic crowns which were fabricated by soft milling and selective laser melting had better marginal fit than those fabricated by hard milling and casting.

Main subject category:

Health Sciences

Keywords:

Marginal fit, Marginal discrepancy, Co-Cr frameworks of implant-cemented metal ceramic crowns, CAD/CAM technology

Index:

Number of index pages:

Contains images:

Yes

Number of references:

111

Number of pages:

146