Revisiting the measurement of keratinized gingiva: a cross-sectional study comparing an intraoral scanner with clinical parameters.

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Periodontal and Implant Science Pub Date : 2023-10-01 Epub Date: 2023-06-27 DOI:10.5051/jpis.2204320216

Ahmet Mert Nalbantoğlu, Deniz Yanık

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Abstract

Purpose: The aim of this study was to investigate the relationships between gingival thickness (GT) and keratinized gingiva width (KGW), papilla height (PH), and crown ratio (CR) by employing transgingival probing and an intraoral scanner (IOS).

Methods: This cross-sectional study examined 360 maxillary anterior teeth from 60 patients. GT was assessed using transgingival probing with an endodontic spreader. KGW, CR, and PH were measured using an IOS. One-way analysis of variance, the Student's t-test, and Spearman correlation coefficients were employed for statistical analysis.

Results: Higher GT was significantly associated with thinner KGW in the central region (P=0.019). There was no statistically significant difference in GT between teeth (P=0.06). PH was lower in lateral teeth than in canines (P=0.047), with a PH of 2.99 mm in lateral teeth. The KGW was narrower in canines than in central teeth (P=0.007). A moderate correlation was observed between KGW and PH in the central region (P=0.01), while a weak negative correlation was found between KGW and CR (P=0.043).

Conclusions: A moderate negative correlation was found between GT and KGW, as well as between PH and KGW in central teeth. In contrast, a weak negative correlation existed between CR and KGW. The PH (2.99 mm) was lower in lateral teeth than in canines. The traditional paradigm, which suggests a positive correlation between KGW and GT, was re-evaluated by measuring KGW using an IOS.

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重新审视角化牙龈的测量:一项比较口腔内扫描仪与临床参数的横断面研究。

目的：本研究采用经牙龈探针和口内扫描仪（IOS）研究牙龈厚度（GT）与角化牙龈宽度（KGW）、乳头高度（PH）和牙冠比率（CR）之间的关系。使用根管扩张器经牙龈探查评估GT。使用IOS测量KGW、CR和PH。采用单向方差分析、Student t检验和Spearman相关系数进行统计分析。结果：较高的GT与中央区域较薄的KGW显著相关（P=0.019）。牙齿之间的GT没有统计学上的显著差异（P=0.06）。侧牙的PH低于犬科动物（P=0.047），侧牙的PH为2.99mm。犬齿的KGW较中央齿窄（P=0.007），中央齿KGW与PH呈中度相关（P=0.001），与CR呈弱负相关（P=0.043）。相反，CR和KGW之间存在微弱的负相关。侧牙的PH（2.99mm）低于犬科动物。传统的范式表明KGW和GT之间存在正相关，通过使用IOS测量KGW来重新评估。

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来源期刊

Journal of Periodontal and Implant Science DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.30

自引率

5.30%

发文量

期刊介绍： Journal of Periodontal & Implant Science (JPIS) is a peer-reviewed and open-access journal providing up-to-date information relevant to professionalism of periodontology and dental implantology. JPIS is dedicated to global and extensive publication which includes evidence-based original articles, and fundamental reviews in order to cover a variety of interests in the field of periodontal as well as implant science.