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Aim: To assess the prevalence and severity of periodontitis in patients with moderate chronic kidney disease (CKD) and comparing the results with the self‐reported periodontitis awareness of the study subjects.
Material and methods: The periodontal status of 270 patients with moderate CKD randomly selected from a cohort of 5,217 subjects participating in the prospective observational German Chronic Kidney Disease (GCKD) project was analysed by recording bleeding on probing (BOP), probing pocket depth (PPD) and clinical attachment level (CAL). Furthermore, the awareness of the study subjects of their periodontal conditions was evaluated by a self‐reported questionnaire.
Results: 24.4% of the CKD study patients showed no or only mild signs of periodontal disease, 47.6% displayed moderate and 27% severe periodontitis. Questionnaire data revealed that 62.3% of the study subjects with severe periodontitis were not aware of the presence of the disease, 44.4% denied having received any systematic periodontal therapy so far, although 50% of them indicated to visit their dentist regularly for professional tooth cleanings.
Conclusion: While the clinical study data confirm an increased prevalence of periodontitis in CKD patients, their self‐reported awareness of periodontitis was low.
Objective: To evaluate the benefit of resective surgical periodontal therapy (root amputation or resection, root separation, tunnelling) in periodontitis patients exhibiting class II and III furcation involvement (FI) compared with non‐surgical treatment (SRP) or open flap debridement (OFD).
Material: Outcomes were tooth survival (primary), vertical probing attachment gain, and reduction in probing pocket depth (secondary) evidenced by randomized clinical trials, prospective and retrospective cohort studies and case series with ≥ 12 months of follow‐up. Search was performed on 3 electronic databases from January 1998 to December 2018.
Results: From a total of 683 articles, 66 studies were identified for full‐text analysis and 7 studies finally included. Six hundred sixty‐seven patients contributed 2,021 teeth with class II or III FI. Data were very heterogeneous regarding follow‐up and distribution of FI. A total of 1,515 teeth survived 4 to 30.8 years after therapy. Survival ranged from 38%–94.4% (root amputation or resection, root separation), 62%–67% (tunnelling), 63%–85% (OFD) and 68%–80% (SRP). Overall, treatment provided better results for class II FI than class III.
Conclusion: Within their limits, the data indicate that in class II and III FI, SRP and OFD may result in similar survival rates as root amputation/resection, root separation or tunnelling.
Background: A similar long-term stable clinical attachment level (CAL) of infrabony defects (IBDs) after regenerative treatment compared to control teeth would indicate a high level of stability resulting from the regenerative approach. Methods: Patients with a regeneratively treated IBD were screened 120 ± 12 months postoperatively for eligibility for study participation, and were included if complete baseline and 12-month examinations (plaque (PlI), periodontal probing depth (PPD), CAL) were available and a respective control tooth could be identified. Re-examination included clinical examination (PPD, CAL, PlI/GI, bleeding on probing, plaque control record, gingival bleeding index). Results: A total of 27 patients (16 females; age (median; lower/upper quartile): 57.0; 44.0/60.0 years; 6 smokers) contributed 27 IBDs (test), for each of which a control tooth was identified. Five test teeth (18.5%) were lost between 12 and 120 months. The remaining 22 test teeth revealed a significant CAL gain after 1 (2.5 mm; 1.0/4.0 mm, p < 0.0001) and 10 (2.5 mm; 0.5/3.5 mm, p < 0.0001) years, whereas control teeth were stable (1 year: 0.0 mm; 0.0/1.0 mm, p = 0.396; 10 years: 0.0 mm; −1.0/1.5 mm, p = 0.215). The study did not detect any significant CAL change between 1 and 10 years for test (−0.5 mm; −1.0/0.5 mm, p = 0.414) and control teeth (0.0 mm; −1.0/1.0 mm, p = 0.739). In 15 patients, test and control teeth revealed stable CAL values between 12 and 120 months. Conclusion: Regenerative treatment of IBDs exhibited stability comparable to non-surgically treated, periodontally reduced sites over a 10-year period.
Aim: Evaluation of long‐term results after connective tissue graft (CTG) using the envelope technique and the effect on patient‐centred outcomes (Oral Health Impact Profile: OHIP) in a private practice setting.
Materials and Methods: Fifteen patients (11 female, mean age: 45.0 ± 8.88 years) underwent root coverage procedure using a CTG involving maxillary Miller class I teeth. Pre‐operatively, 3 and 120 ± 12 months after surgery, all patients were examined, completed OHIP questionnaire, and were asked to assess improvement and their satisfaction with the results of surgery. All procedures were performed by the same investigator.
Results: Recession depth at 3 months of 1.19 ± 0.93 mm was reduced to that of 0.63 ± 0.64 mm at 120 ± 12 months after surgery (p = .117). Recession width (−1.23 ± 2.27 mm) decreased as well (p = .117), while relative root coverage increased from 48.46 ± 32.18% at 3 months to 71.22 ± 30.86% at 120 months (p = .011). The number of cases with complete root coverage increased from two (15.4%) to six (40.0%) from 3 to 120 months (p = .046). OHIP score (12.07 ± 10.15) did not change after 10 years (12.13 ± 9.86, p = .889). Ten years after surgery, 12 patients (80%) reported they would make the decision again to undergo CTG transplantation.
Conclusions: Within the limitations of the study design with a high risk of bias in a practice setting, long‐term stability of recession reduction, OHIP and patient‐perceived satisfaction remained stable over 10 years.
Background: Estimating prognosis of periodontally affected teeth at the beginning of supportive periodontal care (SPC) is an important component for further treatment planning. This study aimed to evaluate tooth loss (TL) during 10 years of SPC in periodontally compromised patients and to identify tooth-related factors affecting TL.
Methods: Patients were re-examined 120 ± 12 months after accomplishment of active periodontal therapy. TL was defined as primary outcome variable and tooth-related factors (abutment status, furcation involvement [FI], tooth mobility, mean periodontal probing depth [PD], and clinical attachment level [CAL] at beginning of SPC, and initial bone loss [BL]) were estimated based on an adjusted regression analyses model.
Results: Ninety-seven patients (51 females and 46 males; mean age, 65.3 ± 11 years) lost 119 of 2,323 teeth (overall TL [OTL]: 0.12 teeth/patient/y) during 10 years of SPC. Forty of these teeth (33.6%) were lost for periodontal reasons (TLP; 0.04 teeth/patient/y). Significantly more teeth were lost due to other reasons (P <0.0001). TLP (OTL) only occurred in 5.9% (14.7%) of all teeth, when BL was at least 80%. Use as abutment tooth, FI degree III, tooth mobility degrees I and II, mean PD, and CAL positively correlated with OTL (P <0.05). For TLP, FI and tooth mobility degree III as well as mean CAL were identified as tooth-related prognostic factors (P <0.05).
Conclusions: During 10 years of SPC, most of the teeth (93.4%) of periodontally compromised patients were retained, showing the positive effect of a well-established treatment concept. Well-known tooth-related prognostic factors were confirmed.
Aim: To evaluate the level of agreement between the periodontal risk assessment (PRA) and the periodontal risk calculator (PRC).
Materials and methods: Periodontal risk was retrospectively assessed among 50 patients using PRA and PRC. Both methods were modified. PRA by assessing probing pocket depths and bleeding on probing at four (PRA4) and six (PRA6) sites per tooth, PRC by permanently marking or unmarking the dichotomously selectable factors “irregular recall,” “oral hygiene in need of improvement” and “completed scaling and root planing” for PRC. Agreement between PRA and PRCred (summarized risk categories) was determined using weighted kappa.
Results: Fifty patients enrolled in periodontal maintenance (48% female, age: 63.8 ± 11.2 years) participated. PRA4 and PRA6 matched in 32 (64%) patients (κ‐coefficient = 0.48, p < .001). There was 100% agreement between both PRC versions. There was minimal agreement of PRA6 and PRCred (66%, 28% one different category, 6% two different categories; κ‐coefficient = 0.34; p = .001). PRA4 and PRCred did not match (60% agreement, 34% one different category, 6% two different categories; κ‐coefficient = 0.23; p = .13). For the SPT diagnosis of severe periodontitis, PRA6 and PRCred agreed weakly (κ‐coefficient = 0.44; p = .004).
Conclusion: PRA and PRC showed a minimal agreement. Specific disease severity may result in improved agreement.
Aim: Comparison of grading according to radiographic bone loss (BL) or according to interdental clinical attachment loss (CAL).
Materials and Methods: In 100 periodontitis patients at the Department of Periodontology of Goethe-University Frankfurt, Germany, periodontitis grade was assigned by (i) indirect evidence using BL at the most affected tooth divided by root length and (ii) CAL at the most affected tooth divided by root length of the respective tooth type according to root length in German and Swedish cohorts. The resulting quotients were divided by age.
Results: Patients (age: 53.5 ± 10.4 years; 57 females; 16 smokers; no diabetes; stage: 78 III, 22 IV) were by either method assigned to grade B or C (BL: 35 B, 65 C; CAL [German]: 23 B, 77 C; [Swedish]: 29 B, 71 C). Using root length (German cohort), agreement was 76% (kappa: 0.427; fair to good/moderate agreement) and 72% (Swedish cohort; kappa: 0.359; poor/fair agreement). Molars were most frequently chosen (BL: 64%; CAL: 71%).
Conclusions: Assignment of periodontitis grade by indirect evidence using BL or CAL using standard root length of the German cohort showed fair to good/moderate agreement. Thus, grade assignment by CAL may be used in epidemiologic studies where radiographs are not available.
Parodontitis ist eine chronisch entzündliche nichtübertragbare Erkrankung, die alle Anteile des Zahnhalteapparates (Parodonts) betrifft und dort weitgehend irreversible Schäden verursacht. Schätzungen legen nahe, dass in Deutschland ca. 10 Mio. Menschen an einer schweren Parodontitis erkrankt sind. Parodontitis zeigt über viele Jahre zumeist wenige oder nur milde Symptome, die von den Patienten oft nicht wahrgenommen oder richtig eingeordnet werden. Fehlendes Bewusstsein kann dazu führen, dass zahnärztliche Behandlung erst in einem fortgeschrittenen Erkrankungsverlauf in Anspruch genommen wird, wenn umfangreiche Therapiemaßnahmen notwendig geworden sind und sich die Prognose für den Erhalt der Zähne verschlechtert hat. Der parodontale Screeningindex (PSI) ist ein einfaches und schnelles Instrument, mit dem die Notwendigkeit weiterführender diagnostischer Maßnahmen beurteilt werden kann. Der Index wird mittlerweile bei vielen Patienten durchgeführt. Trotzdem bleiben die Versorgungszahlen niedrig und hinter dem zurück, was für das Absenken der bestehenden Parodontitislast notwendig wäre. Jede Zahnarztpraxis muss in der Lage sein, Parodontitistherapie umzusetzen. Fachzahnärzte oder Spezialisten können die allgemeinzahnärztlichen Kollegen wesentlich bei der Behandlung von schweren Formen von Parodontitis unterstützen. Dazu ist eine Aufwertung des Faches in der universitären Ausbildung erforderlich, aber auch die zunehmende postgraduale Ausdifferenzierung von Spezialisten oder Fachzahnärzten für Parodontologie. Die neuen Behandlungsrichtlinien für die Parodontaltherapie (PAR-Therapie) erlauben die Versorgung der parodontal erkrankten Patienten auf Basis international anerkannter wissenschaftlicher Standards und verbessern damit die Rahmenbedingungen für die Parodontitistherapie in der zahnärztlichen Praxis.
Background and Objective: Long-term tooth retention is the ultimate goal of periodontal therapy. Aim of this study was to evaluate tooth loss (TL) during 10 years of supportive periodontal therapy (SPT) in periodontal compromised patients and to identify factors influencing TL on patient level. Material and Methods: Patients were re-examined 120 ± 12 months after active periodontal therapy. TL and risk factors [smoking, initial diagnosis, SPT adherence, interleukin-1 polymorphism, cardiovascular diseases, age at baseline, bleeding on probing (BOP), change of practitioner, insurance status, number of SPT, marital and educational status] influencing TL on patient level were assessed. Results: One-hundred patients (52 female, mean age 65.6 ± 11 years) lost 121 of 2428 teeth (1.21 teeth/patient; 0.12 teeth/patient/y) during 10 years of SPT. Forty-two of these were lost for periodontal reasons (0.42 teeth/patient; 0.04 teeth/patient/y). Significantly more teeth were lost due to other reasons (P < .001). Smoking, baseline severity of periodontitis, non-adherent SPT, positive interleukin-1 polymorphism, marital and educational status, private insurance, older age at baseline and BOP, small number of SPT were identified as patient-related risk factors for TL (P < .05). Conclusion: During 120 ± 12 months of SPT, only a small number of teeth was lost in periodontally compromised patients showing the positive effect of a well-established periodontal treatment concept. The remaining risk for TL should be considered using risk-adopted SPT allocation.
Objective: Evaluation of survival of teeth with class III furcation involvement (FI) ≥5 years after active periodontal treatment (APT) and identification of prognostic factors. Methods: All charts of patients who completed APT at the Department of Periodontology of Goethe-University Frankfurt, Germany, beginning October 2004 were screened for teeth with class III FI. APT had to be accomplished for ≥5 years. Charts were analysed for data of class III FI teeth at baseline (T0), at accomplishment of APT (T1), and at the last supportive periodontal care (T2). Baseline radiographic bone loss (RBL) and treatment were assessed. Results: One-hundred and sixty patients (age: 54.4 ± 9.8 years; 82 females; 39 active smokers; 9 diabetics, 85 stage III, 75 stage IV, 59 grade B, 101 grade C) presented 265 teeth with class III FI. Ninety-eight teeth (37%) were lost during 110, 78/137 (median, lower/upper quartile) months. Logistic mixed-model regression and mixed Cox proportional hazard model associated adjunctive systemic antibiotics with fewer tooth loss (26% vs. 42%; p = .019/.004) and RBL (p = .014/.024) and mean probing pocket depth (PPD) at T1 (p < .001) with more tooth loss. Conclusions: Subgingival instrumentation with adjunctive systemic antibiotics favours retention of class III furcation-involved teeth. Baseline RBL and PPD at T1 deteriorate long-term prognosis.