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Review

Parameters Affecting the Retention Force of CAD/CAM Telescopic Crowns: A Focused Review of In Vitro Studies

1
Department of Prosthetic Dentistry, Faculty of Dentistry, Minia University, Minia 61511, Egypt
2
Dental Materials Science, Discipline of Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
*
Author to whom correspondence should be addressed.
Academic Editor: Gianrico Spagnuolo
J. Clin. Med. 2021, 10(19), 4429; https://doi.org/10.3390/jcm10194429
Received: 9 June 2021 / Revised: 15 September 2021 / Accepted: 22 September 2021 / Published: 27 September 2021
(This article belongs to the Section Stomatology)
Telescopic systems constructed using computer aided design and computer aided manufacture (CAD/CAM) can overcome many drawbacks associated with conventionally constructed ones. Since retention is considered the most important function of these retainers, this scoping review aimed to discuss and summarize the parameters that affect this function in CAD/CAM-manufactured telescopic crowns and to compare their retention force values with the recommended retention force. An electronic search was done in Pubmed and Google Scholar databases using different keyword combinations to find the related articles. Seventeen articles that follow the eligibility criteria for this review were selected and analyzed for detection of each of the tested parameters and their effect on retention force. The parameters tested in these articles were divided into parameters related to design, manufacturing, material type, and test condition. Regardless of the effect of these parameters, the retention force values recorded in most of the selected studies laid within or were higher than the recommended retention force (2.5–10 N), which indicated the need to design and set the combination of materials of telescopic systems according to oral biomechanics. View Full-Text
Keywords: retention force; double crowns; telescopic crowns; CAD/CAM retention force; double crowns; telescopic crowns; CAD/CAM
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MDPI and ACS Style

Kamel, A.; Badr, A.; Fekry, G.; Tsoi, J. Parameters Affecting the Retention Force of CAD/CAM Telescopic Crowns: A Focused Review of In Vitro Studies. J. Clin. Med. 2021, 10, 4429. https://doi.org/10.3390/jcm10194429

AMA Style

Kamel A, Badr A, Fekry G, Tsoi J. Parameters Affecting the Retention Force of CAD/CAM Telescopic Crowns: A Focused Review of In Vitro Studies. Journal of Clinical Medicine. 2021; 10(19):4429. https://doi.org/10.3390/jcm10194429

Chicago/Turabian Style

Kamel, Abdullah, Amr Badr, Gehan Fekry, and James Tsoi. 2021. "Parameters Affecting the Retention Force of CAD/CAM Telescopic Crowns: A Focused Review of In Vitro Studies" Journal of Clinical Medicine 10, no. 19: 4429. https://doi.org/10.3390/jcm10194429

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