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. 2021 Jan;25(1):283-293.
doi: 10.1007/s00784-020-03363-9. Epub 2020 Jun 16.

Material selection for tooth-supported single crowns-a survey among dentists in Germany

Angelika Rauch  1 , Annett Schrock  2   3 , Oliver Schierz  2 , Sebastian Hahnel  2
Affiliations

Material selection for tooth-supported single crowns-a survey among dentists in Germany

Angelika Rauch et al. Clin Oral Investig. 2021 Jan.

Abstract

Objectives: This study aimed to survey dentists in Germany to identify their favored materials for the fabrication of tooth-supported single crowns (SCs) depending on the location of the abutment teeth and the preparation margin.

Materials and methods: The survey included questions regarding demographic characteristics of dentists/their dental practice and preferred restorative materials for the fabrication of SCs for abutment teeth 16, 11, 34, and 36 with either supra- or subgingival preparation margins.

Results: Between August 2019 and February 2020, 721 dentists participated in the survey; responses from 33 dentists were excluded from data analysis because the dentists did not work in Germany or provided less than one fixed dental prosthesis/month. Dentists favored ceramic materials independent of the location of the abutment tooth and preparation margin (56.6-92.2%). CAD/CAM resin composites or full metals were preferred by only a few participants. A significantly higher proportion of dentists recommended porcelain fused to metal for subgingival preparation margins than for supragingival margins (p < 0.001). Characteristics of dentists/dental practices influenced a single scenario (11 subgingival) that was dependent on the dentist's time since graduation. When asked to specify the ceramic materials, numerous participants wrote a free response (5.7-7.8%) or did not answer (0.7-4.8%).

Conclusions: Dentists in Germany selected restorative materials for SCs depending on the clinical scenario. Since numerous dentists did not specify the ceramic materials, postgraduate information and education might help to extend expertise.

Clinical relevance: The results of this survey provide insight into the favored materials of dentists for the fabrication of tooth-supported SCs.

Keywords: Ceramic; Composite resins; Dental alloys; Dental material; Dental restoration (permanent); Survey.

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Conflict of interest statement

All authors declare that they have no conflicts of interest.

Figures

Fig. 1
Fig. 1
Participation of dentists sorted by postal code as percentage (N = 491, no answer = 197)
Fig. 2
Fig. 2
Frequency of favored materials for a supragingival and b subgingival preparation margins depending on the location of the abutment tooth
Fig. 3
Fig. 3
Frequency and count of answers that were given by participants choosing ceramics
See this image and copyright information in PMC

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