Abstract
BackgroundThe aim of this study was to analyze the correlation between the dental plaque indices measured using quantitative light-induced fluorescence-digital (QLF-D) and conventional clinical indices that assess gingival status.MethodsFrom among the patients who visited Ewha Womans University Mokdong Hospital, 33 adults in their 20s who had relatively even teeth were selected for full-mouth QLF-D imaging. The images were used to analyze the QLF-D score and the QLF-D ΔR score. As clinical indices, the gingival index (GI), bleeding on probing (BOP), probing pocket depth (PPD), and patient hygiene performance (PHP) index were measured. The correlations between the QLF-D score and QLF-D ΔR score and each clinical index were analyzed. Analyses were performed comparing the indices of maxillary and mandibular teeth, the teeth on right and left sides of the mouth, anterior and posterior teeth, and buccal and lingual surfaces of each tooth. Pearson’s correlation analysis was conducted (p < 0.05).ResultsThe mean full-mouth QLF-D score was highly correlated with the GI, BOP, PPD, PHP index (p < 0.01). The mean full-mouth QLF-D score showed the highest correlation with GI (r = 0.749) and the lowest correlation with PPD (r = 0.683). The correlations between the QLF-D score were higher in the mandible than in the maxilla and in the anterior teeth than in the posterior teeth, while no significant differences were seen between the buccal and lingual surfaces of tooth.ConclusionsThis study concluded that the correlations between the plaque indices measured for each tooth surface area using QLF-D and the clinical indices assessed were significantly high, and it allowed objective determination of the gingival status. Therefore, the plaque index measured using QLF-D may be used as an alternative to supplement the shortcomings of conventional clinical indices for educating patients about plaque control and continued patient oral care.
Highlights
The aim of this study was to analyze the correlation between the dental plaque indices measured using quantitative light-induced fluorescence-digital (QLF-D) and conventional clinical indices that assess gingival status
To determine the gingival status of the participants, the gingival index (GI), bleeding on probing (BOP) and probing pocket depth (PPD) were measured for each tooth, after which the patient hygiene performance (PHP) index was measured by staining the plaque with disclosing solution
QLF-D Quantitative Light-Induced Fluorescence-Digital, QLF-D ⊿R score redness differences of 30, 70, and 120% between the teeth and the red plaque observed on the QLF-D photograph, PHP index Patient hygiene performance index, GI Gingival index, BOP Bleeding on probing, PPD Probing pocket depth *P < 0.05 **P < 0.01
Summary
The aim of this study was to analyze the correlation between the dental plaque indices measured using quantitative light-induced fluorescence-digital (QLF-D) and conventional clinical indices that assess gingival status. One of the main causes of periodontal diseases, is formed mainly by bacteria, and is clinically important [2] because it is a key pathogenic predecessor substance for dental calculi. Chronic stimuli can be applied to the gingiva to cause periodontal diseases unless oral biofilms are periodically removed. The removal of oral biofilms is one of the most basic and effective processes for preventing oral cavity diseases [4]. Basic education regarding oral biofilms is necessary for preventing oral diseases by keeping the oral environment clean In this basic education, clinical specialists educate patients regarding oral biofilms in an understandable format to help them develop effective oral biofilm removal methods tailored to their needs by their own maintenance, which can help the patients with a life-long habit of keeping their oral environment clean
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