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. 2020 Nov:102:103469.
doi: 10.1016/j.jdent.2020.103469. Epub 2020 Sep 9.

Evidence-practice gap in minimal intervention dentistry: Findings from a dental practice-based research network

Naoki Kakudate  1 , Yoko Yokoyama  2 , Futoshi Sumida  3 , Yuki Matsumoto  4 , Hiroe Yamazaki  5 , Tomoyuki Touge  5 , Yuki Fujikawa  5 , Valeria V Gordan  6 , Gregg H Gilbert  7
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Evidence-practice gap in minimal intervention dentistry: Findings from a dental practice-based research network

Naoki Kakudate et al. J Dent. 2020 Nov.

Abstract

Objectives: This study aimed to 1) quantify the evidence-practice gap (EPG) between dental clinical practice and published evidence on Minimal Intervention Dentistry (MID) among dentists in Japan; and 2) examine the hypothesis that dentist characteristics have a significant association with the EPG.

Methods: We conducted a cross-sectional study via use of a web-based questionnaire survey of dentists who were affiliated with the Dental Practice-based Research Network Japan (n = 297). To quantify the EPG on MID, we used a questionnaire that included 10 clinical questions or scenarios to assess concordance between dental practice and published evidence on MID. We evaluated concordance by coding responses to each question as consistent or inconsistent with the evidence. An overall concordance was then determined as percent of responses that were consistent with published evidence for 10 questions. Subsequently, multiple logistic regression analysis was conducted to examine the associations between dentist characteristics and higher overall concordance (≥median) with published evidence.

Results: Mean and median overall dentist-level concordance were both 60 % (SD: 18, interquartile range: 50-75 %). Logistic regression analysis showed that "gender of dentist", "city population", and "frequency of obtaining evidence from the scientific journal articles in English" were significantly associated with high concordance, with odds ratios (95 % CIs) of 2.33 (1.01-5.39), 2.01 (1.02-3.96), and 2.45 (1.08-5.59), respectively.

Conclusions: Japanese dentists demonstrated medium concordance with published evidence, indicating that an EPG on MID exists in Japanese dental clinical practices. Dentist-specific characteristics had significant associations with high concordance with published evidence.

Clinical significance: Despite the establishment and dissemination of the concept of MID, the EPG on MID exists in Japanese dental clinical practices. A high concordance was significantly associated with the following dentist characteristics: "female dentist", "dental clinic location in a government-ordinance-designated city", and "frequently obtaining evidence from the English-language scientific journal articles".

Keywords: Evidence-based dentistry; Evidence-practice gap; Minimal intervention dentistry; Practice-based research.

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Conflict of interest statement

Declaration of interests

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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