Retention Force of Removable Partial Dentures with CAD-CAM-Fabricated Telescopic Crowns

Materials
Christin ArnoldJeremias Hey

Abstract

The aim of this study was to compare the retention forces after artificial aging of telescopic crowns fabricated either by a conventional lost-wax technique or by computer-aided design/computer-aided manufacturing (CAD-CAM) technology. Two types of telescopic crowns (0°) were fabricated conventionally using high-noble (group A) and non-precious metal (group B). CAD-CAM fabricated telescopic crowns (0°) were made of non-precious metal (group C). Retention forces were assessed before and after artificial aging and after axial and non-axial loading. Initially [I.] and after artificial aging [IV.], specimens of group C (I. 16.2 N; IV. 13.6 N) exhibited the highest retention forces. The retention forces in groups B (I. 12.5 N; IV. 4.6 N) and A (I. 9.6 N; IV. 2.9 N) were found to be lower than those of group C. The retention force differences between the groups were statistically significant (p < 0.001) at all measurement times [I. vs. IV.]. Different fabricated telescopic crowns with approximately identical designs and materials exhibited different retention forces and different long-term retentive behavior. An optimized CAD-CAM process with individually defined design parameters ensured telescopic crowns with a better fit. These fi...Continue Reading

References

Aug 1, 1990·The Journal of Prosthetic Dentistry·S OhkawaH Tsuru
Jul 18, 2000·Journal of Biomedical Materials Research·P WeiglH C Lauer
Mar 18, 2004·Journal of Oral Rehabilitation·M A GüngörM Sonugelen
Dec 22, 2004·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Kwok-Hung ChungRobert J Cronin
Sep 30, 2005·Acta Odontologica Scandinavica·Michael BehrGerhard Handel
Apr 9, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Christian F J StappertJoerg R Strub
Jun 11, 2008·Dental Materials Journal·Michio ShimakuraToru Nemoto
Apr 4, 2009·Clinical Oral Investigations·Florian BeuerMichael Naumann
Sep 29, 2011·Dental Materials Journal·Yoshiyuki SakaiYoshimasa Igarashi
May 11, 2012·Clinical Oral Investigations·Jörg EngelsFlorian Beuer
Apr 3, 2016·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Christina WagnerBogna Stawarczyk
Feb 24, 2017·Dental Materials Journal·Shusuke NakagawaMasahiro Tanaka
Jul 16, 2017·The Journal of Prosthetic Dentistry·Christin ArnoldJürgen M Setz
Nov 5, 2017·Clinical Oral Investigations·Christin ArnoldRamona Schweyen
Sep 5, 2018·The International Journal of Prosthodontics·Karina ZierdenPeter Rehmann
May 21, 2019·The International Journal of Oral & Maxillofacial Implants·Jaana-Sophia KernStefan Wolfart

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Methods Mentioned

BETA
force measurements
pull-off

Software Mentioned

Desktopscanner
hyperDENT
SPSS

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