Application of highly ozonated sunflower oil does not improve palatal wound healing: A randomized controlled clinical trial.

Background: Ozone is a molecule that plays an important role in dentistry, specially for wound healing. The aim of the present study was to clinically and immunologically evaluate the effect of ozonated oil on the healing of palatal wounds.

Methods: This is a prospective, longitudinal, triple-blind, randomized, placebo-controlled clinical trial.

Frequency of Porphyromonas gingivalis fimA in smokers and nonsmokers after periodontal therapy.

Unlabelled: Porphyromonas gingivalis is one of the most important Gram-negative anaerobe bacteria involved in the pathogenesis of periodontitis. P. gingivalis has an arsenal of specialized virulence factors that contribute to its pathogenicity.

Determination of the Influence of Chronic Periodontitis on Pulp Sensibility by Means of Electric and Thermal Cold Testing.

Introduction: Communication between pulp and periodontal tissue has been well established. However, it is unknown when periodontal disease begins to affect the clinical response of pulp tissue. The aim of this study was to assess the influence of periodontal severity on pulp sensibility by means of electric and thermal cold testing.

Influence of obesity on experimental periodontitis in rats: histopathological, histometric and immunohistochemical study.

Objectives: This study assessed the influence of obesity on the progression of ligature-induced periodontitis in rats.

Materials And Methods: Forty-eight adult Wistar rats were randomly divided into two groups: the HL group (n = 24) was fed high-fat animal food to induce obesity, and the NL group (n = 24) was fed normolipidic animal food. Obesity was induced within a period of 120 days, and the induction of experimental periodontitis (EP) was subsequently performed for 30 days.

Periodontal Disease and Body Weight Assessment in Children.

Purpose: The purpose of this study was to assess body weight and periodontal disease development in obese and normal weight children.

Methods: Eighty-eight 5- to 10-year-old children participated in this study. Periodontal measurements included the visible plaque index (VPI), community periodontal index (CPI), and bleeding on probing (BOP).

Lipid profile and high-sensitivity C-reactive protein levels in obese and non-obese subjects undergoing non-surgical periodontal therapy.

Periodontal treatment may improve the metabolic control of dyslipidemia. The aim of this study was to evaluate the lipid profile and high-sensitivity C-reactive protein (hs-CRP) levels in obese and non-obese patients undergoing periodontal therapy. Patients with generalized chronic periodontitis were divided into obese (n = 28) and non-obese groups (n = 26).

Periodontal treatment in a patient with generalized idiopathic dystonia.

Dystonia is a neurological disorder that can cause constant muscle contractions and motor limitations. This work reports a clinical case of periodontal treatment in a patient with generalized idiopathic dystonia. The intraoral clinical examination was focused on the presence of caries and periodontal diseases.

Multiple marginal tissue recession treated with a simplified lateral sliding flap technique.

Marginal tissue recession is a common esthetic problem that is usually accompanied by dentin sensitivity, and patients frequently report a fear of dental loss. Lateral sliding flaps have been used for localized recession, but they are rarely used for multiple recessions. The aim of this paper was to report a case of coverage of multiple marginal tissue recessions by means of a lateral sliding flap associated with a connective tissue graft.

Bone-implant contact around crestal and subcrestal dental implants submitted to immediate and conventional loading.

The present study aims to evaluate the influence of apicocoronal position and immediate and conventional loading in the percentage of bone-implant contact (BIC). Thus, 36 implants were inserted in the edentulous mandible from six dogs. Three implants were installed in each hemimandible, in different positions in relation to the ridge: Bone Level (at crestal bone level), Minus 1 (one millimeter apical to crestal bone), and Minus 2 (two millimeters apical to crestal bone).

Connective tissue graft as a biological barrier for guided tissue regeneration in intrabony defects: a histological study in dogs.

Background: The use of the autogenous periosteal graft as biological barrier has been proposed for periodontal regeneration. The aim of this study was to evaluate the histometric findings of the subepithelial connective tissue graft as barrier in intrabony defects compared to a bioabsorbable membrane.

Methods: Three-walled intrabony defects were created surgically in the mesial aspect of the right and left maxillary canines in five healthy mongrel dogs.

Framingham cardiovascular risk in patients with obesity and periodontitis.

Background: Obesity is a chronic inflammatory condition that has been associated to a risk factor for the development of periodontitis and cardiovascular disease; however, the relationship still needs to be clarified. The objective of this study was to evaluate the cardiovascular risk in obese patients with chronic periodontitis.

Materials And Methods: A total of 87 obese patients were evaluated for anthropometric data (body mass index [BMI], waist circumference, body fat), systolic blood pressure (SBP) and diastolic blood pressure (DBP), cholesterol, high-density lipoprotein (HDL) and low-density lipoprotein (LDL), triglycerides, glycemia and periodontal parameters (visible plaque index (VPI), gingival bleeding index (GBI), bleeding on probing (BOP), periodontal probing depth (PPD) and clinical attachment level (CAL)).

Prevalence of Periodontal Bone Loss in Brazilian Adolescents through Interproximal Radiography.

Purpose. The aim of this study was to verify the prevalence of alveolar bone loss in Brazilian adolescents through the interproximal X-rays analysis. Methods.

Root coverage stability of the subepithelial connective tissue graft and guided tissue regeneration: a 30-month follow-up clinical trial.

Objectives: The aim of this study was to compare the long-term clinical effects produced by subepithelial connective tissue graft (SCTG) and guided tissue regeneration combined with demineralized freeze-dried bone allograft (GTR-DFDBA) in the treatment of gingival recessions in a 30-month follow-up clinical trial.

Methods: Twenty-four defects were treated in 12 patients who presented canine or pre-molar Miller class I and/or II bilateral gingival recessions. GTR-DFDBA and SCTG treatments were performed in a randomized selection in a split-mouth design.

Histopathological features of dental pulp in teeth with different levels of chronic periodontitis severity.

Purpose. To evaluate the histopathological condition of the pulp in teeth with different levels of chronic periodontitis in humans. Methods.

Chronic periodontal disease may influence the pulp sensitivity response: clinical evaluation in consecutive patients.

Purpose. The aim of the present study was to evaluate the clinical response of the pulp in teeth with chronic periodontitis. Methods.

Clinical and microbiological effects of photodynamic therapy associated with nonsurgical periodontal treatment. A 6-month follow-up.

Experimental studies in animals and in vitro have shown the usefulness of photodynamic therapy (PDT) as an adjunct to periodontal treatment. The aim of this study was to evaluate the long-term clinical and microbiological effects of PDT associated with nonsurgical periodontal treatment. Three sites in each of 33 patients with chronic periodontitis were randomly allocated in a split-mouth design to a treatment group: (1) scaling and root planing (SRP group); (2) SRP and irrigation with toluidine blue O (TBO group); and (3) SRP, irrigation with TBO and low-level laser irradiation (PDT group).

The role of obesity as a modifying factor in patients undergoing non-surgical periodontal therapy.

Background: Earlier studies have shown an association between obesity and periodontitis, which is mediated by cytokine production. The aim of this study is to assess the role of obesity as a modifying factor on periodontal clinical parameters and on circulating proinflammatory cytokine levels in subjects undergoing non-surgical periodontal treatment.

Methods: Twenty-seven obese subjects and 25 normal-weight subjects were enrolled in this study.

Summers' technique modification for sinus floor elevation using a connective tissue graft. A case report.

The sinus floor elevation technique with Summers' osteotome is simpler and less invasive than access through the lateral wall of the sinus; however, it is susceptible to a higher level of sinusal membrane rupture. The objective of the present study was to display a modification of the osteotomy technique by connective tissue interposition in order to weaken the impact of sinus cortical fracture, and therefore prevent perforations in the sinusal membrane. A case is reported in which a patient presented with an absent tooth #4 for osseointegrated implant rehabilitation.

Treatment of gingival recession with collagen membrane and DFDBA: a histometric study in dogs.

In a previous study, we evaluated the findings related to the use of resorbable collagen membranes in humans along with DFDBA (demineralized freeze-dried bone allograft). The aim of this subsequent study was to histometrically evaluate in dogs, the healing response of gingival recessions treated with collagen membrane + DFDBA (Guided Tissue Regeneration, GTR) compared to a coronally positioned flap (CPF). Two types of treatment were randomly carried out in a split-mouth study.

Effect of induced diabetes mellitus on alveolar bone loss after 30 days of ligature-induced periodontal disease.

Several studies have shown that diabetics are more susceptible to the development of severe periodontal disease. Currently, the use of animal models can be considered a feasible alternative in radiographic assessments of these two pathologies. The purpose of this radiographic study was to evaluate the effect of induced diabetes mellitus on alveolar bone loss after 30 days of ligature-induced periodontal disease.

Myeloperoxidase as inflammatory marker of periodontal disease: experimental study in rats.

Rationale: Previous studies have used myeloperoxidase (MPO) as an inflammatory marker to estimate the accumulation of neutrophils in inflamed regions.

Objective: The aim of this experimental study was to quantify the levels of MPO related to experimental periodontal disease in rats.

Methods: Periodontal disease was induced in a group of rats using placement of a ligature around molar teeth.

Prevalence and features of palato-radicular grooves: an in-vitro study.

The presence of a morphological defect called a palato-radicular groove (PRG) is considered to be an important contributing factor to the development of localized chronic periodontitis, for it favors the accumulation and proliferation of bacterial plaque deep into the periodontium. This anomaly affects maxillary incisors, especially lateral incisors. The prevalence and different morphologic conditions of the PRG were evaluated in 376 maxillary lateral and central incisors.

Root trunk height as a risk factor for periodontal furcation involvement in maxillary first molars: an in vitro study.

The aim of this study was to correlate the root trunk height from the furcation openings on the buccal, mesial and distal surfaces to the cemento-enamel junction in upper first permanent molars in human beings with risk for periodontal disease progression. One hundred extracted maxillary first molars were used. Reference points and demarcations were determined from the entrance of the buccal (F1), mesial (F2) and distal (F3) furcations to the cemento-enamel junction in millimeters.

Prevalence of different types of accessory canals in the furcation area of third molars.

Background: Although there are several studies that show the prevalence and diameter of accessory root canals in the furcation area, there is a scarceness of studies that observe the trajectory and different types of cavo-interradicular canals. The aim of this study was to verify the prevalence of the different morphologic types of accessory canals in the furcation region in an attempt to show their trajectories.

Methods: Forty submerged mandibular third molars were used, which were extracted and decalcified so that the microtomy procedure in the mesio-distal axial plane could be performed, obtaining semiserial sections with thicknesses of 5 microm.

Relationship between gingival clinical parameters and the reactivity of the BANA test in subgingival samples from children.

Gingivitis is the first manifestation of periodontal disease, and is characterized by painless and slow evolution. Early diagnosis and intervention must be done to avoid the possibility of precocious periodontitis during the childhood or teenage years. The enzymatic BANA test (N-benzoyl-DL-arginine-naphthylamide) was used to evaluate subgingival samples from 54 children between 6 and 9 years of age.