Hongyan Wang MDSc, Hu Chen PhD, Sukun Tian PhD, Yuchun Sun PhD, Feng Wu PhD
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The scanning data were imported into the Geomagic Studio 2013 to measure three indicators, which included the gap change maximum (Δ<i>d</i><sub>m</sub>, μm), the buccolingual position of Δ<i>d</i><sub>m</sub> (P), and the gap expanded buccolingual range (S, mm). The difference between two groups of three indicators and their relationship with food impaction with tight proximal contact were analyzed by the <i>t</i> test, the Pearson chi-squared test, the nonparametric Mann–Whitney <i>U</i> test, and the binary logistic regression analysis (<i>a</i> = 0.05).</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>All indicators (Δ<i>d</i><sub>m</sub>, P, and S) were statistically different (<i>p</i> < 0.001, <i>p</i> = 0.002, and <i>p</i> < 0.001) in the impacted and non-impacted groups. Food impaction with tight proximal contact was affected by Δ<i>d</i><sub>m</sub> and S (<i>p</i> < 0.001, <i>p</i> = 0.039), but not by P (<i>p</i> = 0.409).</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>The excessive increase of the gap change maximum and the gap expanded buccolingual range under bite force promoted the occurrence of food impaction with tight proximal contact.</p>\n </section>\n \n <section>\n \n <h3> Clinical Significance</h3>\n \n <p>The use of intraoral scanning to measure the characteristics of the proximal contact area gap change under bite force may help to deepen our understanding of the pathogenesis of food impaction with tight proximal contact. Importantly it can provide a reference basis for individualizing and quantifying occlusal adjustment treatment.</p>\n </section>\n </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quantitative evaluation of the proximal contact area gap change characterization under intercuspal occlusion by intraoral 3D scanning: Food impaction with tight proximal contact\",\"authors\":\"Hongyan Wang MDSc, Hu Chen PhD, Sukun Tian PhD, Yuchun Sun PhD, Feng Wu PhD\",\"doi\":\"10.1111/jerd.13240\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Objective</h3>\\n \\n <p>This study aimed to present three indicators that represent the proximal contact area gap change under intercuspal occlusion and to see if and how these indicators influence food impaction with tight proximal contact.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Materials and Methods</h3>\\n \\n <p>Ninety volunteers were recruited for bite force measurement and intraoral scanning. Three-dimensional surface data and buccal bite data were obtained for 60 impacted and 60 non-impacted teeth. The scanning data were imported into the Geomagic Studio 2013 to measure three indicators, which included the gap change maximum (Δ<i>d</i><sub>m</sub>, μm), the buccolingual position of Δ<i>d</i><sub>m</sub> (P), and the gap expanded buccolingual range (S, mm). The difference between two groups of three indicators and their relationship with food impaction with tight proximal contact were analyzed by the <i>t</i> test, the Pearson chi-squared test, the nonparametric Mann–Whitney <i>U</i> test, and the binary logistic regression analysis (<i>a</i> = 0.05).</p>\\n </section>\\n \\n <section>\\n \\n <h3> Results</h3>\\n \\n <p>All indicators (Δ<i>d</i><sub>m</sub>, P, and S) were statistically different (<i>p</i> < 0.001, <i>p</i> = 0.002, and <i>p</i> < 0.001) in the impacted and non-impacted groups. Food impaction with tight proximal contact was affected by Δ<i>d</i><sub>m</sub> and S (<i>p</i> < 0.001, <i>p</i> = 0.039), but not by P (<i>p</i> = 0.409).</p>\\n </section>\\n \\n <section>\\n \\n <h3> Conclusion</h3>\\n \\n <p>The excessive increase of the gap change maximum and the gap expanded buccolingual range under bite force promoted the occurrence of food impaction with tight proximal contact.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Clinical Significance</h3>\\n \\n <p>The use of intraoral scanning to measure the characteristics of the proximal contact area gap change under bite force may help to deepen our understanding of the pathogenesis of food impaction with tight proximal contact. 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引用次数: 0
摘要
材料和方法招募了 90 名志愿者进行咬合力测量和口内扫描。获得了 60 颗撞击牙和 60 颗非撞击牙的三维表面数据和颊咬合数据。将扫描数据导入 Geomagic Studio 2013 测量三项指标,包括间隙变化最大值(Δdm,μm)、Δdm 的颊舌向位置(P)和间隙扩大的颊舌向范围(S,mm)。结果所有指标(Δdm、P 和 S)在受影响组和非受影响组均有统计学差异(p < 0.001、p = 0.002 和 p < 0.001)。近端紧密接触的食物嵌塞受 Δdm 和 S 的影响(p < 0.001,p = 0.039),但不受 P 的影响(p = 0.409)。临床意义利用口内扫描测量咬合力作用下近侧接触区间隙变化的特征,有助于加深我们对近侧紧接触食物嵌塞发病机制的认识。重要的是,它可以为个性化和量化咬合调整治疗提供参考依据。
Quantitative evaluation of the proximal contact area gap change characterization under intercuspal occlusion by intraoral 3D scanning: Food impaction with tight proximal contact
Objective
This study aimed to present three indicators that represent the proximal contact area gap change under intercuspal occlusion and to see if and how these indicators influence food impaction with tight proximal contact.
Materials and Methods
Ninety volunteers were recruited for bite force measurement and intraoral scanning. Three-dimensional surface data and buccal bite data were obtained for 60 impacted and 60 non-impacted teeth. The scanning data were imported into the Geomagic Studio 2013 to measure three indicators, which included the gap change maximum (Δdm, μm), the buccolingual position of Δdm (P), and the gap expanded buccolingual range (S, mm). The difference between two groups of three indicators and their relationship with food impaction with tight proximal contact were analyzed by the t test, the Pearson chi-squared test, the nonparametric Mann–Whitney U test, and the binary logistic regression analysis (a = 0.05).
Results
All indicators (Δdm, P, and S) were statistically different (p < 0.001, p = 0.002, and p < 0.001) in the impacted and non-impacted groups. Food impaction with tight proximal contact was affected by Δdm and S (p < 0.001, p = 0.039), but not by P (p = 0.409).
Conclusion
The excessive increase of the gap change maximum and the gap expanded buccolingual range under bite force promoted the occurrence of food impaction with tight proximal contact.
Clinical Significance
The use of intraoral scanning to measure the characteristics of the proximal contact area gap change under bite force may help to deepen our understanding of the pathogenesis of food impaction with tight proximal contact. Importantly it can provide a reference basis for individualizing and quantifying occlusal adjustment treatment.
期刊介绍:
The Journal of Esthetic and Restorative Dentistry (JERD) is the longest standing peer-reviewed journal devoted solely to advancing the knowledge and practice of esthetic dentistry. Its goal is to provide the very latest evidence-based information in the realm of contemporary interdisciplinary esthetic dentistry through high quality clinical papers, sound research reports and educational features.
The range of topics covered in the journal includes:
- Interdisciplinary esthetic concepts
- Implants
- Conservative adhesive restorations
- Tooth Whitening
- Prosthodontic materials and techniques
- Dental materials
- Orthodontic, periodontal and endodontic esthetics
- Esthetics related research
- Innovations in esthetics