Apatzidou Danae A, Zygogianni Penelope, Sakellari Dimitra, Konstantinidis Antonis
Department of Preventive Dentistry, Periodontology and Implant Biology, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
J Clin Periodontol. 2014 Feb;41(2):149-56. doi: 10.1111/jcpe.12200. Epub 2013 Dec 18.
To compare the clinical and microbiological outcome of the 1-h ultrasonic debridement of chronic periodontitis patients (CPP) with and without frequent sessions of oral hygiene reinforcement.
Clinical measurements and subgingival plaque were collected from 44 CPP at baseline, 3- and 6-months. The control group received a single session of 1-h full-mouth ultrasonic debridement, while oral hygiene instructions (OHI) were reiterated over four visits. In the test group, OHI were limited in the 1-h treatment session. At 3-months, both groups received additional debridement and OHI. The "Checkerboard" DNA-DNA hybridization technique quantified Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola in plaque.
At three months, smaller reductions in plaque and bleeding indices, and in P. gingivalis numbers were noted in the test group, while these differences disappeared at six months. After the 3-month re-treatment visit, the test group presented with a greater probing pocket depth (PPD) reduction. Plaque negatively affected PPD in a similar manner after both treatment approaches.
Lack of oral hygiene reinforcement in the 1-h full-mouth debridement resulted in higher plaque and bleeding scores and numbers of P. gingivalis at three months; professional removal of dental biofilm every three months is beneficial in subjects with compromised plaque control.
比较接受1小时超声清创术的慢性牙周炎患者（CPP）在有无频繁强化口腔卫生措施情况下的临床和微生物学结局。
在基线、3个月和6个月时收集44例CPP患者的临床测量数据和龈下菌斑。对照组接受一次1小时的全口超声清创术，同时在四次就诊期间反复进行口腔卫生指导（OHI）。试验组在1小时治疗期间仅进行有限的OHI。在3个月时，两组均接受额外的清创术和OHI。采用“棋盘式”DNA-DNA杂交技术对菌斑中的牙龈卟啉单胞菌、福赛坦氏菌和具核梭杆菌进行定量分析。
在3个月时，试验组的菌斑和出血指数以及牙龈卟啉单胞菌数量的减少幅度较小，而这些差异在6个月时消失。在3个月的再次治疗就诊后，试验组的探诊深度（PPD）降低幅度更大。两种治疗方法后，菌斑均以类似方式对PPD产生负面影响。
在1小时全口清创术中缺乏口腔卫生强化措施会导致3个月时菌斑和出血评分以及牙龈卟啉单胞菌数量升高；对于菌斑控制不佳的患者，每三个月进行一次专业的牙菌斑生物膜清除有益。
