本研究目的是評估使用超音波洗牙治療法在非手術性牙周病治療長期臨床效果。總數51位年齡從21歲到61歲中度到嚴重度牙周病患者研究樣本(24位女性;27位男性)中,探討其治療前後的平均牙齦指數(gingival index)。牙菌斑指數(plaque index),牙周囊袋深度(probing pocket depths),及牙周附著水平(probing attachment levels)。研究樣本在治療期間除了給予患者口腔衛生指導外,只接受單獨牙齦上及牙齦下之超音波洗牙之非手術性牙周病治療法。三年的研究結果顯示應用超音波洗牙法後,牙齦發炎及牙菌斑形成明顯降低。此外,原始牙周囊袋深度在4-6毫米及≧7米之區域,其牙周袋深度降低及牙周附著水平的增加的治療效果在每一治療階段明顯大於1-3毫米之原始牙周囊袋深度。結論顯示,以超音波洗牙法治療中度及重度牙周炎,對於平均牙齦指數、牙菌斑指數、牙周囊袋深度及牙周附著水平的改善效果,以原始牙周袋深度1-3毫米區域在3-6個月最明顯,而原始牙周囊袋深度4-6毫米及≧7毫米的區域分別在6-12個月及12-24個月最明顯。
The purpose of the present study was to examine and evaluate. the effect of clinical trials of non-surgical periodontal therapy (NSPT) by ultrasonic scaling alone for three years. A total of 51 individuals (27 males; 24 females) ranging in age from 21 to 61 years with moderately to extremely advanced periodontitis were studied following base-line assessments which included gingival index, plaque index, probing pocket depths, and probing attachment levels (PALs). The patients were subjected to NSPT by using supraand subgingival scaling with ultrasonic instrumentation alone. The results showed that this therapy resulted in a pronounced and significant reduction (p<0.001) of gingival inflammation and dental plaque formation for the 3 years of study. In addition, a significant reduction of probing depth as well as an obvious gain of PALs were found greater in sites with initial depth of 4-6 mm and 7 mm or more(p<0.001) than those in sites with inital probings of 1-3 mm (p>0.05) at each survey time point.