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Longitudinal Analysis of CAD/CAM Restoration Incorporation Rates into Navy Dentistry.

Abstract：

INTRODUCTION:Computer-aided design/computer-aided manufacturing (CAD/CAM) has gained increasing popularity since the first commercially viable dental system was introduced in the mid-1980s. Digitally milled dental restorations can be fabricated chairside in the course of one dental appointment, reducing time, cost, and manpower when compared with traditional laboratory-fabricated analog restorations. Clinical performance, physical properties, and esthetics of digital restorations have been shown to be comparable to traditional analog restorations. The Navy has incorporated CAD/CAM systems into dental clinics on multiple platforms to include ships. The efficiency of this technology has the potential to positively impact dental health and mission readiness. The objective of the present study was to evaluate placement rates of CAD/CAM restorations by Navy dental providers. MATERIALS AND METHODS:Placement rates of CAD/CAM restorations from October 2011 to June 2017 (Department of Defense created codes specific to CAD/CAM restorations in 2011) and of laboratory-fabricated analog restorations from January 2008 to June 2017 were queried from the Dental Common Access System (DENCAS) and Corporate Dental Access system (CDA) and evaluated. Scatterplots for each dental restoration category were generated using monthly production data and overlaid with simple linear regression lines and 95% confidence intervals. Regression analysis was performed to determine whether changes in the monthly percentages of placements before and after CAD/CAM were increasing or decreasing and to determine whether the monthly percent change from before CAD/CAM implementation and after CAD/CAM implementation was significantly different from one another. RESULTS:A total of 20,512 CAD/CAM restorations were placed by Navy providers over the 68-month period. A year-over-year increase in digitally fabricated restorations was observed. As a percentage of total indirect restorations, CAD/CAM units surged from 13.8% in 2012 to 38.1% in 2017. All ceramic restorations fabricated by the classical analog method also increased significantly through the period. Traditional analog porcelain fused to metal (PFM) restorations and large amalgam restorations, which frequently serve a similar clinical purpose as indirect or direct full or partial tooth coverage restorations, both decreased significantly after CAD/CAM productivity tracking was initiated. CONCLUSIONS:Implementation of CAD/CAM digital restorations has led to a significant decline in specific traditional analog procedures since productivity tracking of CAD/CAM was initiated in 2011. Navy dentistry has embraced CAD/CAM as an efficient means to prepare sailors and marines for deployments, improve operational dental readiness, and potentially decrease dental emergencies by reducing the need for provisional restorations. The trend toward increased utilization of digital dentistry is expected to continue for the following reasons: (1) incorporation of CAD/CAM technology into dental school curricula, (2) advancement of CAD/CAM systems equipped with fast-evolving user interfaces, (3) increased accessibility to CAD/CAM technology in Navy clinics, and (4) training of a greater proportion of dentists in digital CAD/CAM technology. Future studies should investigate the survival rate of CAD/CAM restorations placed within military settings, cost, and manpower of maintaining CAD/CAM units, and impact on military dental laboratories associated with increased CAD/CAM usage.

journal_name

Mil Med

journal_title

Military medicine

authors

Dickens N,Haider H,Lien W,Simecek J,Stahl J

doi

10.1093/milmed/usy260

subject

Has Abstract

pub_date

2019-05-01 00:00:00

pages

e365-e372

issue

5-6

eissn

0026-4075

issn

1930-613X

pii

5145877

journal_volume

184

pub_type

杂志文章

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Longitudinal Analysis of CAD/CAM Restoration Incorporation Rates into Navy Dentistry.