Clinical effects of scaling and root planing with an adjunctive periodontal endoscope for residual pockets: a randomized controlled clinical study

目的 比较牙周内窥镜辅助龈下刮治和根面平整（SRP）与传统SRP对慢性牙周炎患者基础治疗后残留牙周袋的临床疗效。方法 将牙周基础治疗后口内每个区至少有1个位点探诊深度（PD）≥5 mm的患者纳入研究,随机分为内窥镜组和SRP组,分别对残留牙周袋位点进行内窥镜辅助SRP治疗和传统SRP治疗。在治疗前（基线）、治疗后3、6个月检查PD、探诊出血（BOP）和附着丧失（AL）,采用SPSS 20.0统计学软件对数据进行统计分析。结果 与基线相比,治疗后3、6个月内窥镜组及SRP组PD≥5 mm位点百分比、PD、AL、BOP阳性位点百分比均降低（P<0.05）。治疗后6个月与3个月相比,内窥镜组PD≥5 mm位点百分比、PD、AL、BOP阳性位点百分比均降低（P<0.05）,而SRP组差异无统计学意义（P>0.05）。与SRP组相比,内窥镜组治疗后3及6个月PD≥5 mm位点百分比、PD均降低,治疗后6个月AL、BOP阳性位点百分比降低（P<0.05）。结论 牙周内窥镜辅助SRP对于基础治疗后的残留牙周袋（PD≥5 mm）的临床疗效优于传统SRP,尤其具有更好的远期预后。     

局部应用甲硝唑辅助治疗深牙周袋的疗效分析

目的：比较局部应用25％甲硝唑牙科用凝胶剂（依俐周）辅助龈下刮治与单纯龈下刮治,治疗深牙周袋的疗效。方法：18例中,重度成人牙周炎患者,选择其左右侧对应牙,牙周袋探诊深度（Probing Depth,PD)大于等于7mm但小于等于10mm,且探诊出血的位点,进行随机,单盲,对照试验,0天时试验牙接受龈下刮治及依俐周局部用药,对照牙只接受龈下刮治,于基线,后线,治疗后21天,91天,时,进行PD和柏出血（Bleebing On Probing BOP)及龈下菌斑涂片检查,结果：依俐周局部用药部位,其D害治疗后91天,改善了2．91mm,明显大于对照组改善值1．83mm,治疗后21天,试验组BOP由基线时的100．0降至86．4％,而对照组BOP无明显改善,治疗后21天试验组龈下菌斑中螺旋体的百分离由基线之24．1％降至6．2％,而对照组无显著变化。结论：局部应用25％甲硝唑牙科用凝胶辅助龈下辞治疗 深牙周袋,可获得较好的临床效果。     

牙周内窥镜下刮治与传统刮治对龈下牙石清除效果的比较

目的比较内窥镜下龈下刮治与传统龈下刮治清除龈下牙石的效果。方法收集16例患者26颗无保留价值的重度慢性牙周炎患牙,随机分为两组,每组8例13颗患牙,分别行牙周内窥镜下龈下刮治(A组)及传统龈下刮治(B组),每颗患牙均刮治10min后拔除,亚甲基蓝染色后,蓝色显示残留牙石,对每颗牙颊、舌、近中及远中面拍照并用Image Pro Plus图像分析软件检测、计算各牙面的牙石残留率。比较两组患牙治疗后的牙石残留率以及吸烟、牙周探诊出血位点数和牙周探诊深度对牙石清除效果的影响。结果 A组患牙平均牙石残留率为(8.34±1.70)%,B组患牙平均牙石残留率为(13.02±3.36)%,差异有统计学意义(P<0.05)。吸烟、探诊出血位点数、牙周探诊深度对治疗后的牙石残留率均有影响(P<0.05)。结论在牙周内窥镜下行龈下刮治,清除牙石的效果明显优于传统龈下刮治。吸烟、探诊出血、探诊深度对牙石残留率均有影响。     

超声系统治疗与牙周翻瓣术的短期疗效比较

目的 比较Vector超声系统治疗和牙周翻瓣术治疗慢性牙周炎的1年临床疗效.方法 选取牙周基础治疗3个月后,30例慢性牙周炎患者,其口内的单根牙及多根牙都存在牙周探诊深度5～7 mm的位点,随机分为3组各10例患者,Vector超声系统治疗组进行Vector超声治疗、牙周翻瓣术组进行改良Widman翻瓣术、常规龈下刮治和根面平整组进行龈下刮治和根面平整术,记录治疗结束1d后的疼痛程度,并在治疗前,治疗后3、6、12个月,采用Florida探针系统检查记录探诊出血(BOP)、探诊深度(PD)、牙龈退缩(GR)、临床附着丧失(CAL),并比较分析.结果 3组治疗后1d的疼痛程度评价,Vector超声系统治疗组最低2.2,牙周翻瓣术组最高为6.4,组间差异具有统计学意义(P＜0.05).对于单根牙,3组在治疗后的3、6、12个月PD、GR、BOP与治疗前比较都有显著改善(P＜0.01);治疗后的第12个月,Vector超声系统治疗组和牙周翻瓣术组PD改善相同,且该组的GR和CAL低于牙周翻瓣术组和常规龈下刮治和根面平整组.对于多根牙,治疗后3、6个月,3组PD较治疗前有改善,GR较治疗前明显增加(P＜0.01),翻瓣术组和Vector超声系统治疗组的CAL值较治疗前减少(P＜0.05);治疗后12个月只有翻瓣术组的PD、CAL值较治疗前减少(P＜0.05),3组的GR较治疗前明显增加(P＜0.01);3组的BOP阳性率在治疗后的3、6、12个月,翻瓣术组与治疗前比较显著下降(P＜0.01),另两组则在治疗后的12个月与治疗前差异无统计学意义(P＞0.05).结论 对于基础治疗后3个月,仍存在5～7 mm牙周袋位点的单根牙,采用Vector超声系统进行治疗的患者,1年后的疗效优于牙周翻瓣术;而对于多根牙,Vector超声系统治疗的效果不及牙周翻瓣手术的效果.     

超声刮治在老年重度慢性牙周炎患者维护期的应用效果

目的:观察龈下超声根面平整在老年重度慢性牙周炎患者牙周支持治疗期间(原为维护期)的应用效果.方法:选择60岁以上诊断为重度牙周炎,经基础治疗后仍有5 mm以上牙周袋和探诊出血,为翻瓣术的适应证,且拒绝手术治疗的患者60例.分别于基础治疗后4周(基线)、6个月和12个月复诊行超声刮治前,检测菌斑指数(plaque index,PLI)、出血指数(bleeding index,BI)、探诊出血(bleeding on probing,BOP)、探诊深度(probing depth,PD)的变化.1年后对结果进行t检验.结果:与基线相比,6个月复查时所有临床牙周指数均有显著改善(P<0.01),6个月与12个月相比无显著差异(P>0.05).结论:未经翻瓣术治疗的老年重度牙周炎患者,在其牙周支持治疗期间定期施以龈下超声治疗短期可取得较好的治疗效果.     

光动力疗法联合龈下刮治术治疗慢性牙周炎疗效观察

目的 观察光动力疗法联合龈下刮治和根面平整术治疗慢性牙周炎的临床效果.方法 选择中、重度慢性牙周炎患者30例,随机分为3组,每组10人.A组:单纯龈下刮治和根面平整术治疗;B组:龈下刮治和根面平整术治疗后即刻行光动力疗法;C组:龈下刮治和根面平整术治疗后1周行光动力疗法.治疗前、龈下刮治和根面平整术治疗后6周、12周时分别记录牙周袋探诊深度及探诊出血的阳性牙位点,并进行统计学分析.结果 龈下刮治和根面平整术后6周和12周结果显示,3组牙周袋探诊深度和探诊出血情况较术前均有改善(P＜0.05).B组和C组的牙周袋探诊深度和探诊出血情况改善效果均优于A组(P＜0.05);B组与C组间差异无统计学意义(P＞0.05).结论 对中、重度慢性牙周炎患者应用光动力疗法联合龈下刮治和根面平整术治疗,较单独使用龈下刮治和根面平整术治疗效果更佳.光动力疗法可作为新的辅助治疗手段用于牙周病的治疗.     

重度广泛型侵袭性牙周炎患者牙周序列治疗的临床研究

目的：观察重度广泛型侵袭性牙周炎（generalized aggressive periodontitis, GAgP）患者牙周序列治疗后临床指标的变化,并评价其治疗效果。方法：15例GAgP患者在龈上洁治后1个月内完成龈下刮治、根面平整及光动力治疗,刮治后4周再评估,行翻瓣及翻瓣植骨术,每3个月进行1次牙周维护,序列治疗后纵向观察12个月。在基线和维护期各时间点记录全口探诊深度（probing depth,PD）、探诊出血（bleeding on probing, BOP）和牙齿松动度,磨牙记录根分叉病变的程度。结果：在基线时患者平均PD（3．96±2．21）mm,BOP阳性位点占88．1％。序列治疗后12个月平均PD（2．36±1．28）mm,BOP阳性位点减少至8．7％,其中轻、中、重度位点治疗后PD值与治疗前比较差异有统计学意义（P〈0．05）。结论：GAgP患者经牙周序列治疗和定期牙周维护能取得良好的治疗效果。     

重度广泛型侵袭性牙周炎患者非手术治疗的临床疗效观察

目的 观察重度广泛型侵袭性牙周炎(generalized aggressive periodontitis,GAgP)患者牙周非手术治疗后临床指标的变化,并评价其治疗效果.方法 19例GAgP患者在洁治后1个月内完成刮治和根面平整,每2个月进行1次牙周维护,纵向观察6个月.在基线和维护期各时间点记录全口探诊深度(probing depth,PD)、探诊出血(bleeding on probing,BOP)、附着丧失(attachment loss,AL)和牙齿松动度,磨牙记录根分叉病变的程度,其中7例患者在基线和治疗后6个月进行白细胞计数、中性粒细胞百分比和甘油三酯的检测.结果 在基线时患者的平均PD为(5.1±2.1)mm,BOP阳性位点占98.0%,AL(3.9±1.9)mm.治疗后6个月平均PD为(3.0±1.1)mm,BOP阳性位点减少至11.9%,AL(3.2±1.2)mm,其中重度位点治疗后PD减少[(4.0±1.6)mm]大于中度位点[(2.2±0.9)mm,P<0.001],切牙治疗后PD减少大于磨牙,中性粒细胞百分比治疗后6个月[(55.4±9.3)%]较治疗前[(65.7±9.9)%]明显减少(P<0.05).结论 GAgP患者经牙周非手术治疗和定期牙周维护能取得良好的治疗效果,磨牙可能需要进一步的刮治和根面平整或手术治疗.     

超声龈下刮治同步药物冲洗对龈下微生物的影响

目的 :比较Master 40 0超声龈下刮治同步药物冲洗系统与传统超声龈下刮治 +药物冲洗对龈下微生物的影响及临床疗效。方法 :选取慢性成人牙周炎患牙 2 0个 ,随机分入实验组 (超声龈下刮治同步药物冲洗 )和对照组 (传统超声龈下刮治 +药物冲洗 )。记录治疗前、后 0、7、14d的探诊出血 (BOP)、探诊深度 (PD) ,并采集龈下菌斑样本培养 ,观察比较总菌落形成单位 (CFU)和牙周可疑致病菌检出率及检出量的变化。结果 :治疗后两组PD、BOP、CFU和牙周可疑致病菌数量均显著减少 (P <0 .0 5 ) ;实验组牙龈卟啉单胞菌 (P <0 .0 1)和二氧化碳噬纤维菌 (P <0 .0 5 )明显少于对照组。结论 :Master 40 0超声龈下刮治同步药物冲洗系统比传统超声龈下刮治 +药物冲洗能更有效地减少龈下致病微生物的数量     

慢性牙周炎基础治疗后维护期疗效纵向观察及分析

目的观察慢性牙周炎患者基础治疗后维护期的疗效,并分析牙位和位点因素对牙周袋探诊深度变化的影响。方法对牙周基础治疗后进入维护期的22例慢性牙周炎患者进行9个月的纵向观察。每3个月给予口腔卫生宣教,龈上洁治、龈下刮治和根面平整。在基线(基础治疗完成后)和每次复查时记录牙周袋探诊深度、临床附着丧失和探诊出血情况。结果维护治疗期间,牙周袋探诊深度、临床附着丧失、探诊出血等临床指标均有进一步改善。牙周袋深度前牙减少(0.52±1.02)mm,后牙减少(0.37±1.26)mm,差异有统计学意义(P<0.05);邻面位点与非邻面位点相比,邻面位点的牙周袋深度减少更显著(P<0.05);6 mm及以上的位点牙周袋深度减少(1.88±2.19)mm,4~5 mm的位点牙周袋深度减少(1.12±1.32)mm,差异有统计学意义(P<0.05)。结论慢性牙周炎患者基础治疗后每3个月进行维护治疗,可使牙周临床指标进一步改善,牙位与位点因素均对牙周袋深度的变化有影响。     

Long-term effects of supportive therapy in periodontal patients treated with fibre retention osseous resective surgery. I: recurrence of pockets, bleeding on probing and tooth loss

BACKGROUND: Periodontal surgery is indicated in the treatment of persistent pockets following cause-related therapy. The aim of this study was to evaluate the long-term effect of supportive therapy in periodontal patients treated with fibre retention osseous resective surgery. METHODS: Three-hundred and four consecutive patients were identified and retrospectively examined while presenting for a supportive periodontal care (SPC) appointment (T2). All had received non-surgical periodontal treatment and osseous resective surgery as needed, to obtain no sites with probing depth (PD) >3 mm before being enrolled in the SPC programme. The mean SPC duration for the patients was 7.8+/-3.2 years while the mean interval of SPC was 3.4+/-0.8 months. RESULTS: During SPC, a total of 67 teeth had been removed (0.9%). At T2, mean full-mouth plaque scores (FMPS) was 13+/-11.3% and full-mouth bleeding scores (FMBS) was 2+/-3%. In 98.5% of the sites, PD was minimal (or=6 mm was 68 and limited to 41 patients (13.8% of sample). Initial periodontal diagnosis of severe periodontitis, smoking habits, FMBS, number of teeth at completion of active periodontal therapy (T1), number of surgically treated teeth, number of teeth with furcation involvement and number of multi-rooted teeth were associated with the number of pockets at T2. A total of 598 sites (2.1%) displayed bleeding on probing (BOP) at T2. The odds ratio of sites 4 mm or deeper to be BOP positive was 32.9 compared with sites of <3 mm depth. Gender, FMBS, FMPS, furcation involvements and overall number of pockets were associated with the number of bleeding pockets at T2. CONCLUSION: Shallow PDs achieved by treatment of the persistent pockets by fibre retention osseous resective surgery can be maintained over time. These patients displayed minimal gingival inflammation and tooth loss during SPC.     

缓释氯己定凝胶在慢性牙周炎治疗中的应用

目的:观察龈上洁治术、龈下刮治术和根面平整术(scaling and root planing,SRP)结合缓释氯己定凝胶(chlorhexidine,CHX)对慢性牙周炎的治疗作用。方法:选择35～65岁的慢性牙周炎患者36例,将后牙区牙周袋数目较多的单颌设定为实验组,对颌为对照组。实验组采取SRP+CHX治疗,对照组采取SRP治疗。分别于牙周治疗前、中、后3个阶段,记录每个受试牙近颊、颊侧、远颊、近舌、舌侧和远舌位点的牙龈指数(GI)、探诊出血(BOP)、探诊深度(PD)、临床附着水平(CAL)、探诊出血指数(SBI)。结果:BOP、SBI、PD、GI四项指标在治疗后1个月,实验组与对照组之间有显著差异(P<0.05),4个月后则无显著性差异(P>0.05)。CAL在治疗后1个月,两组间无显著(P>0.05),而4个月后差异显著性差异(P<0.05)。无论是实验组还是对照组,治疗前后各项牙周指标后牙区位点对治疗的反应明显不如前牙区,但无显著性差异(P>0.05)。PD>7 mm的深牙周袋,SRP+CHX组与SRP组之间4个月后仍有显著性差异。结论:在慢性牙周炎治疗过程中,SRP+CHX治疗能够改善牙周临床指标,尤其对PD>7 mm的深牙周袋有更好的治疗作用。     

Full-mouth treatment concepts for chronic periodontitis: a systematic review

Objectives: To systematically review the effectiveness of full-mouth treatment concepts for chronic periodontitis.
Material and Methods: A search was conducted for randomized, controlled clinical trials including full-mouth scaling with (FMD) or without (FMS) the use of antiseptics and quadrant scaling (control). Data sources included COHG, CENTRAL, MEDLINE and EMBASE. Reviewers independently conducted data abstraction and quality assessment. The primary outcome was tooth loss; secondary outcomes were the reductions of PPD and BOP and a gain of CAL.
Results: Of 216 identified abstracts, seven trials were included. Meta-analysis revealed a weighted mean difference (WMD) for the reduction of PPD between FMD and control of 0.53 mm [95% confidence interval (CI) (0.28, 0.77), p <0.0001] in moderately deep pockets of single-rooted teeth. The WMD for gain in CAL was 0.33 mm [95% CI (0.04, 0.63), p =0.03] in moderately deep pockets of single- and multi-rooted teeth. Comparing FMD and FMS, the WMD for the reduction of CAL amounted to 0.74 mm [95% CI (0.17, 1.31), p =0.01] in deep pockets of multi-rooted teeth in favour of FMS. For BOP a WMD –18.0% [95% CI (−34.30, −1.70), p =0.03] was calculated in deep pockets of single-rooted teeth in favour of FMD.
Conclusions: In adults with chronic periodontitis only minor differences in treatment effects were observed between the treatment strategies.     

Clinical evaluation of the use of locally delivered chlorhexidine in periodontal maintenance therapy

BACKGROUND: The objective of this study was to evaluate clinically the effectiveness of a chlorhexidine gluconate chip in sites still showing signs of disease during periodontal maintenance therapy. METHODS: Forty-two maintenance non-smoking patients (previously treated with non-surgical scaling and root planing [SRP]), presenting at least one probing depth (PD) of 5 to 8 mm, and bleeding on probing (BOP) at single-rooted teeth were assigned randomly to two groups: treated with a chlorhexidine gluconate chip (CHIP group) and treated with SRP (SRP group). Patients were assessed for plaque index, gingival index, BOP, PD, clinical attachment level (CAL), and gingival recession at baseline, 6 weeks, and 3 and 6 months. RESULTS: Both treatments resulted in improvements in all parameters evaluated. After 6 months, a reduction in PD of 2.64 +/- 0.02 mm and 2.12 +/- 0.02 mm was observed for CHIP and SRP groups, respectively (P >0.05). The observed gain in CAL was 2.19 +/- 0.87 mm and 2.07 +/- 1.53 mm for CHIP and SRP groups, respectively (P >0.05). In deep pockets, PD reduction was 3.60 +/- 0.70 mm for CHIP group and 2.83 +/- 0.62 mm for SRP group (P = 0.01). CONCLUSIONS: Both treatments were equally effective in periodontal health reestablishment in inflamed single-root sites of maintenance patients. However, for deep pockets, the chlorhexidine gluconate chip was more effective than SRP in reducing PD.     

Clinical evaluation of periodontal surgical treatment with an Er:YAG laser: 5-year results

BACKGROUND: The aim of the present study was to evaluate and compare the long-term clinical outcomes of erbium-doped:yttrium, aluminum, and garnet (Er:YAG) laser-assisted periodontal flap surgery versus conventional treatment with the modified Widman flap procedure. METHODS: A total of 146 single-rooted periodontally involved teeth from 25 patients were included in this study. In each patient, left or right maxillary single-rooted teeth were assigned randomly to one of two groups: group A (Er:YAG laser) and group B (modified Widman flap surgery). Er:YAG laser was used to debride the bone pockets, scale the root surface, and trim the periodontal flap. Recession, probing depth (PD), clinical attachment level (CAL), plaque index (PI), gingival index (GI), and bleeding on probing (BOP) scores were recorded at baseline and at 3, 6, 12, 24, 36, 48, and 60 months. RESULTS: Both treatments resulted in decreases in PD, PI, GI, and BOP, increases in gingival recession, and gains in CAL. PD reduction in group A versus group B was statistically significant at 6, 12, 24, and 36 months (P < 0.05). Gains in CAL were significantly greater in group A versus group B at 6, 12, 24, and 36 months. BOP scores were significantly lower in group A versus group B at 3 and 6 months (P < 0.05). All other differences between treatment groups were not statistically significant. CONCLUSIONS: Surgical treatment of single-rooted teeth with chronic periodontitis using the Er:YAG laser yields greater PD reduction and gains in CAL for up to 3 years compared to conventional Widman flap surgery. The short-term results obtained with both treatments can be maintained over 5 years.     

内窥镜辅助下微创牙周基础治疗的临床疗效评价

目的 探讨牙周内窥镜辅助下超声龈下刮治及根面平整(subgingival scaling and root planning,SRP)对重度牙周炎治疗的临床疗效.方法 选取2017年6月至2019年1月于南京大学医学院附属口腔医院就诊的Ⅲ-Ⅳ期牙周炎患者19例,随机分为内窥镜组及对照组.内窥镜组在龈上洁治术1周后,牙周...     

Double-masked randomized clinical trial evaluating the effect of a triclosan/copolymer dentifrice on periodontal healing after one-stage full-mouth debridement

Background: This study evaluates the effect of triclosan/copolymer dentifrice on the 6‐month clinical response of patients with generalized severe chronic periodontitis (GSCP) treated with one‐stage, full‐mouth ultrasonic debridement (FMUD). Methods: Thirty patients diagnosed with GSCP (≥8 teeth presenting probing depth [PD] ≥5 mm and bleeding on probing [BOP]) were selected and randomly allocated to a control group (n = 15) subjected to FMUD and daily use of a placebo dentifrice or to a test group (n = 15) subjected to FMUD and daily use of a triclosan/copolymer dentifrice. Patients were analyzed for the following parameters: full‐mouth plaque index (FMPI), full‐mouth BOP score (FMBS), gingival recession, PD, and clinical attachment level (CAL). Patients were evaluated at 3 and 6 months by a calibrated and masked examiner. Results: Initially, the groups presented similar periodontal conditions, with no significant differences in any of the parameters evaluated (P >0.05). In both groups, improvements in all periodontal parameters (P <0.05) were seen at the completion of the experimental period. Additionally, the test group showed lower FMPI (3 months) and FMBS (3 and 6 months) than the control group (P <0.05). Moreover, the CAL gain was significantly greater in the test group, especially at initially deep pockets (PD ≤7 mm). Whereas in the control group the CAL gain in deep pockets was 2.7 ± 0.6 mm, in the test group the CAL gain was 3.6 ± 1.4 mm (P <0.05). Conclusion: Within the limits of the present study, the use of triclosan/copolymer dentifrice promoted additional clinical benefits in the treatment of GSCP treated by one‐stage FMUD.     

Scaling and root planing effectiveness: the effect of root surface access and operator experience

This study investigated two variables associated with scaling and planning (S&RP): operator experience level and root surface access. One hundred and fourteen periodontally involved, single-rooted teeth designated for extraction were randomly distributed among four operators of various experience levels for either an open or closed session of S&RP. Immediately after treatment, the teeth were extracted, washed, and scored for residual calculus in a blind manner. Results showed that there was no difference in S&RP effectiveness for experience level or type of procedure in shallow (1-3 mm) pockets. However, in moderate (4-6 mm) and deep (greater than 6 mm) periodontal pockets, S&RP combined with an open flap procedure was more effective than S&RP alone for both experience levels. Also, the more experienced operators produced a significantly greater number of calculus-free root surfaces than the less experienced operators in periodontal pockets with moderate and deep probing depths. Clinical application of these results suggests that surgical access is associated with thorough surface debridement in periodontal pockets with moderate-to-advanced probing depths. However, more experienced operators could be expected to render more effective soft surface debridement.     

光敏灭菌辅助龈下刮治后不同深度牙周袋的恢复率比较研究

目的评价PERIOWAVETM光敏灭菌法治疗慢性牙周炎后≥4mm牙周袋的恢复效果。方法经伦理委员会同意后,选择45例患者(每位患者口腔内至少有4个以上≥5mm的牙周袋并分布在2个以上口腔区域内),在接受基础检查以及根面平整术(SRP)治疗后,随机分入3组,A组在SRP之后接受1次PERIOWAVETM光敏灭菌治疗,B组在SRP后及6周后各接受1次PERIOWAVETM治疗,而C组仅接受SRP治疗。在基础检查及12周后测量牙周袋深度。结果在基础检查中共有1851个≥5mm牙周袋,经过治疗后,C组有212(36.7%)个牙周袋≤3mm,A组有160(62.5%)个牙周袋≤3mm,而B组有187(84.6%)个牙周袋≤3mm;705个4mm的牙周袋,治疗后PD≤3mm的C组147(66.5%)个,A组160(62.5%)个,B组187(84.6%)个。经两样本二项分布检验,对于基础检查中为测量为4mm及≥5mm牙周袋,B组的恢复均明显好于A组及C组(P<0.0001)。结论在SRP基础上加以2次光敏灭菌治疗牙周炎对于浅(4mm)及深(≥5mm)牙周袋深度的恢复均明显大于单独使用SRP。