Another system was introduced by Kwok and Caton, which determines prognosis on future periodontal stability. 2002, Fardall et al. The volumetric analysis demonstrated that the mean buccal soft tissue volume loss for the collagen matrix group was 68.6 mm3 compared with 87.6 mm3 found in the collagen plug group (P = .009) over a 6-month period. At the patient level, the treatment resulted in a mean pocket closure rate of 71.6 ± 15.7% for sites with an initial PPD ≥5 mm. New epithelial cells were found to reattach to the enamel after 3 days, and after 2 weeks and more, the cell population on the experimental surfaces could not be distinguished from that on the control surfaces. Analyzing the predictability of the Kwok and Caton periodontal prognosis system: A retrospective study. Using the continuous forms of periodontal measurements, the odds ratios (ORs) (95% confidence interval) of the association with incident MI were 1.46 (1.26 to 1.69), 2.19 (1.66 to 2.89), 1.30 (1.14 to 1.49), and 1.04 (1.02 to 1.07) for mean CAL, PD, ACH, and number of missing teeth, respectively. Many well designed clinical studies have established the effectiveness of periodontal therapy. Recent findings from longitudinal studies are consistent with the concept that periodontal destruction proceeds in random bursts at specific sites and demonstrate that some individuals have an elevated risk of attachment loss. (de 28 à 20) et P.m. (de 27 à 17). Statistical differences (p < 0.05) were found. Clinicians are encouraged to expand and explore a non-surgical approach for maintaining multi-rooted teeth with furcation involvement. To be eligible for the study, participants had to be men or women ages 18 to 80 years of age, having a maxillary premolar, canine, lateral incisor, or central incisor with a restorative or periodontal hopeless prognosis, The purpose of this systematic review was to assess the difference inthe incidence of intraoperative and postoperative complications between the conven-tional and alternativesurgical techni, This review summarizes findings from 46 reports selected from over 130 epidemiologic studies published in 1993 and 1994. furcation involvement and a minimum follow-up of 5 years. Lincoln Nguyen and Goutam Krish are co‐first authors and equally contributed to this study. Ce phénomène constaté parmi les fumeurs gardant davantage une culture positive pour les pathogènes parodontaux après le traitement pourrait contribuer à l'observation fréquente d'un traitement peu favorable chez les fumeurs avec parodontite. revealed a mean annual adjusted tooth loss rate of 0.22 (4.7%). et Peptostreptococcus micros (P.m.). Conclusions. J Periodontol. A cone beam computed tomography scan was taken prior to extraction and at 6 months postextraction. Results: The proposed system uses six tooth level and three patient-level factors to give each tooth a prognosis of secure, doubtful, poor … This scale used similar classifications to group patients based on periodontal stability. Becker W, Becker BE, Berg LE. (de 27 à 11), B.f. (de 27 à 11), F.n. they had been detached by the floss. Background: The effect of smoking on the prevalence of periodontal pathogens after periodontal treatment is still not clear. Descriptive analysis was used for data interpretation. The aim of this study was to determine the volumetric and linear dimensional changes at the buccal surface for both hard and soft tissues after socket augmentation treated with a xenogeneic collagen matrix in combination with bone grafting. A review of the literature indicates several important findings including a loss of clinical attachment following flap procedures for shallow (1–3 mm) pockets and no clinically significant loss after scaling and root planing. The remaining risk for TL should be considered using risk‐adopted SPT allocation. Indexed on: 05 … Participants who required antibiotic prophylaxis prior to dental treatment or those with medical contraindication to dental treatment were excluded. Our prognostic categories are directly correlated with implant stability and can be used in a similar manner to the periodontal prognosis of Kwok and Caton. 2004, Kwok & Caton 2007) define each prognostic category … J Periodontol 2007;78:2063–2071. Une diminution a pûêtre enregistrée pour le saignement au sondage (fumeurs : 0,46 vs non-fumeurs: 0,52) et pour la profondeur de poche au sondage (respectivement 1,64 vs 2,09 mm). This difference was larger (0.62 mm) for sites with radiographic attachment loss 6 mm, while no significant difference was found for sites with radiographic attachment loss 〈6 mm. A decrease could be assessed for bleeding on probing (smokers: 0.46; nonsmokers: 0.52) and probing pocket depth (PPD) (smokers: 1.64 mm; nonsmokers: 2.09 mm). Nach Therapie wurde bei den Nichtrauchern eine signifikante Reduktion der Prävalenz folgender Keime gefunden: Aa (11 auf 3), Pg (17 auf 7), Pi (27 auf 11), Bf (27 auf 11), Fn (28 auf 20) und Pm (27 auf 17). All teeth extracted within the Public Health Service district of Santa Maria, Brazil, over a 5-month period were requested for analysis. Conclusion: J Peri­odontol 2007; 78: 2063–2071; Marinho VC, Worthington HV, Walsh T, Chong LY: Fluoride gels for preventing dental caries in children and adolescents. Compliant patients lost significantly less bone in furcation sites than non-compliant patients. Flashcards. The 1st complex related strikingly to clinical measures of periodontal disease particularly pocket depth and bleeding on probing. From these measurements, four different case definitions of periodontal disease were created. : (2) Enamel pearls. Categories of prognosis proposed by McGuire (1991) 2 and Kwok and Caton (2007) 32 are given in the following tables. All reports indicate that both treatment methods result in pocket reduction. Retrospective study of teeth with a poor prognosis following non-surgical periodontal treatment. Kwok and Caton describe favorable prognosis. On the mesial surfaces the floss was brought to the depth of the pocket and moved back and forth three to five times, while being pressed against the tooth surface. Surgical procedures have been shown to be effective in treating periodontitis when followed by appropriate maintenance care. A. actinomycetemcomitans serotype b, Selenomonas noxia and Actinomyces naeslundii genospecies 2 (A. viscosus) were outliers with little relation to each other and the 5 major complexes. Während hinsichtlich Bluten auf Sondieren und Sondierungstiefen keine Unterschiede zwischen beiden Gruppen gefunden wurden, zeigten die Nichtraucher signifikant günstigere Attachmentgewinne als die Raucher. Abstract Tooth mobility (TM) is an important feature of periodontal disease. Among the factors affecting the decision of maintaining or extracting a tooth, the residual attachment around the roots, the root trunk length, the crown/root ratio, and the morphology of the roots have to be considered, as well as patients' systemic conditions. reported that a single episode of scaling did not completely remove subgingival calculus and that the deeper the periodontal pocket, the less complete the calculus removal. The magnitude of the association varies depending on the measurements or the criteria used to define periodontal disease. It is hard for clinicians to predict their prognosis. After observation periods varying between 15 min and 3 weeks, the teeth were extracted and stained in a 1% solution of Water Blue and examined under the stereomicroscope. Following extraction, the % of subgingival tooth surfaces free of calculus was determined using the method described by Rabbani with a stereomicroscope. While many approaches have been shown to improve the prognosis of furcation-involved teeth, clinical guidelines recommending one treatment or another (based on the horizontal and vertical component of the furcation defects) have not yet been proposed. Background: It has been shown that both treatment methods result in sustained decreases in gingivitis, plaque and calculus and neither procedure appears to be superior with respect to these parameters. One of the major issues is the method used to assess or define periodontal disease. Les données cliniques et microbiologiques ont été obtenues avant et après traitement au niveau du site le plus profond de chaque quadrant. Many efforts have been made to increase the efficacy of periodontitis therapy as much as possible. After treatment in nonsmokers, a significant decrease was found in the prevalence of Aa (11–3), Pg (17–7), Pi (27–11), Bf (27–11), Fn (28–20) and Pm (27–17). Die Beobachtung, dass unter den Rauchern mehr Patienten für Parodontalpathogene nach Therapie kulturpositiv bleiben, könnte zu den häufig beobachteten ungünstigeren Therapieresultaten bei Parodontitispatienten, die rauchen, beitragen. Periodontol 2000. Bei Rauchern wurde eine signifikante Reduktion nur für die Prävalenz von Pg (15 auf 5) gefunden. Comparisons of RPL between teeth extracted on periodontal versus other indications were made using the Mann-Whitney test. Traditional systems are based on tooth loss and may have limited use for patient management. Minimally invasive nonsurgical techniques can be the treatment of choice when approaching periodontally diseased patients with nonsurgical periodontal therapy. Teeth initially assigned to a poorer prognosis category had a higher proportion that changed to a worse prognosis at the latest periodontal exam. There are several important concepts to consider in developing a system of periodontal prognosis. In contrast to schemes based on tooth mortality, Kwok and Caton 5 have proposed a scheme based on “the probability of obtaining stability of the periodontal supporting apparatus.” This scheme is based on the probability of disease progression as related to local and systemic factors (see Box 33-1). Aucune différence significative dans le saignement au sondage ou dans la réduction de profondeur de poche n'a été constatée entre les deux groupes. Access scientific knowledge from anywhere. Although many periodontal prognosis systems have been developed, most of the prognoses are based on tooth mortality (i.e., extractions).5–8 Assigning an accurate prognosis for each tooth be… Dentistry: from research to clinical measures of periodontal prognosis in an issue questionnaire detailing demographic variables kwok and caton periodontal prognosis indication extraction. Radiographic furcation bone loss in Furcation-involved mandibular molars: a system of periodontal therapy whole DNA... 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