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KMID : 0363019750050010072
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Journal of Korean Academy of Periodontology
1975 Volume.5 No. 1 p.72 ~ p.82
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Dental plaque formation and gingival health as related to toothbrushing frequency
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Kwon Young-Hyuk
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Abstract
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The purpose of the present study was to investigate the pattern of formation and to study the effect of gingival health upon plaque formation. Fifteen male dental students of good health and having normal occlusion participated in this study. The volunteers were then randomly divided into three groups. Group I : once daily tooth brushing (Five minutes after every breakfast), Group 11 : twice daily tooth brushings (Five minutes after every breakfast and supper), Group IR : triple daily tooth brushings (five minutes after every breakfast, lunch and supper). The amount of plaque and gingival health were assessed by the same investigator at one week interval for a period of 9 weeks according to the criteria of plaque index system and gingival index system (Loe, 1967). The data from clinical examination were computerized and analyzed statistically. The results were as follows: 1. The rate of plaque formation increased before the appearance of clinically detectable gingivitis and levelled off as gingivitis developed. 2. The triple daily tooth brushings group revealed the least plaque formation and the most effectiveness of maintenance of gingival health. 3. A high positive correlation between the degree of plaque and the degree of gingivitis was found. 4. Generally, the mandibular teeth accumulated more plaque than the maxillary teeth.
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