Evaluation of A. actinomycetemcomitans and P. gingivalis from the mouth of patients irradiated in the head and neck region: a cross-sectional study.

Purpose: This study aimed to quantify Aggregatibacter actinomycetemcomitans (A.a) and Porphyromonas gingivalis (P.g) from the mouth of head and neck irradiated and cancer-free patients.

Periodontal Findings in Children and Adolescents with Cleft Lip and/or Palate: A Case-Control Study.

The purpose of this study was to evaluate periodontal disease and oral biofilm in children and adolescents with cleft lip and/or palate (CLP). A total of 118 individuals aged six to 18 years, with CLP ( equals 60) and without CLP (n equals 58), were evaluated according to plaque index (PI), gingival bleeding index (BI), clinical attachment level (CAL), and probing pocket depth (PPD). Gingivitis and periodontitis were also diagnosed.

Effect of adrenaline and noradrenaline on biofilm formation and virulence factors of Streptococcus mutans UA159.

Objectives: To evaluate in vitro the effects of adrenaline and noradrenaline on the biofilm formation on orthodontic brackets, acid production and expression of virulence genes of Streptococcus mutans UA159 (S. mutans).

Design: S.

Correlation of periodontal and microbiological evaluations, with serum levels of estradiol and progesterone, during different trimesters of gestation.

Our purpouse was to identify quantitatively and qualitatively the subgingival flora in different gestational trimesters, compared to non-pregnant women; evaluating the correlations between epidemiological characteristics, clinical diagnosis, microbiological findings and levels of estradiol and progesterone. 52 pregnant women divided into 3 groups, according to the gestational trimester and 15 non-pregnant patients, without hormonal contraceptives, were evaluated. Plaque index (PI), gingival index (GI), probing depth (PD) and clinical attachment level (CAL) were evaluated.

Caries Experience and Periodontal Status in Children and Adolescents with Cleft Lip and Palate.

Purpose: The purpose of this study was to examine the rate of dental caries and the periodontal status of children and adolescents with cleft lip and palate (CLP) and to compare them with gender- and age-matched control subjects.

Methods: A total of 156 five- to 18-year-olds, with or without CLP, were examined for dental caries (decayed, missing and filled permanent teeth and primary surfaces [DMFT and dmfs, respectively] indices), plaque index (PI), the gingival bleeding index (BI), clinical attachment level (CAL), and probing pocket depth (PPD). Diagnoses of gingivitis (localized and generalized) and periodontitis (mild, moderate, and advanced) were performed.

Periodontal and Microbiological Profile of Intensive Care Unit Inpatients.

Introduction: The bidirectional relationship between the periodontal diseases and systemic diseases was attributed to the focal infection concept. The aims of this study were to assess the periodontal and microbiological profile of intensive care unit (ICU) inpatients submitted to orotracheal intubation, and classify them regarding gender, age group, ethnic, hospitalization reason and period, nosocomial infection occurrence, and death.

Materials And Methods: Inpatients were assessed, distributed into toothed and toothless groups.

The Influence of Cervical Preflaring on the Amount of Apically Extruded Debris after Root Canal Preparation Using Different Instrumentation Systems.

Introduction: The objective of this study was to evaluate the influence of cervical preflaring on the amount of apically extruded debris after root canal preparation using different instrumentation systems.

Methods: One hundred eighty human maxillary central incisors were selected and randomly divided into 12 groups (n = 15). Root canals were instrumented according to manufacturers' instructions using 2 reciprocating single-file systems (Reciproc [VDW, Munich, Germany] and WaveOne [Dentsply Maillefer, Ballaigues, Switzerland]), 3 full-sequence rotary systems (ProTaper Universal [Dentsply Maillefer], ProTaper Next [Dentsply Tulsa Dental, Tulsa, OK], and ProFile [Dentsply Maillefer]), and K-files (Dentsply Maillefer) driven by an oscillatory system with and without cervical preflaring.

Modified Segmental Osteotomy for Relocation of Malpositioned Implant: Case Report.

Obtaining a good cosmetic and proper mastication in oral rehabilitation with dental implants are directly linked to the correct positioning of the implant in the alveolar bone. The malposition of the implant is a challenge in rehabilitation, which can often compromise the entire process. In cases of severely malpositioned implants, one has the option to remove it or leave it submerged under bone and gums.

Effect of repeated sterilization cycles on the physical properties of scaling instruments: a scanning electron microscopy study.

Background: Repeated sterilizations cycles cause undesirable alterations in the material properties of the instruments, such as corrosion, alterations in the hardness of the metal and the loss of the cutting sharpness of the instrument. This research examined the effect of repeated dry heat sterilization and autoclaves cycles on carbon steel (CS) and stainless steel (SS) curettes during the scaling and root planning.

Materials And Methods: A total of 77 Gracey curettes were used in this study.

Effect of chronic stress on ligature-induced periodontitis in inbred and noninbred rats: a radiographic study.

Aim: The aim was to compare the effect of chronic stress on ligature-induced periodontitis in inbred and noninbred female rats by means of a radiographic study.

Materials And Methods: Adult Lewis (inbred) and Wistar (non-inbred) rats were used and divided into the following groups: Ligature/Stress Lewis Group (LSLG, n = 8); Ligature/Stress Wistar Group (LSWG, n = 8); Ligature Lewis Group (LLG, n = 8) and Ligature Wistar Group (LWG, n = 8). The animals were anesthetized and a silk thread was continuously kept around their second upper right molar.

Surgical treatment of class II malocclusion in the orthodontic boundaries: a case report.

The aim of this study was to report a clinical case of treatment of Class II division I malocclusion with facial aesthetic impairment, whose therapeutic approach comprised the association of orthodontic treatment with orthognathic surgery. The treatment for the present case consisted of decompensation oflower incisors and extraction oftwo lower premolars, in order to obtain horizontal discrepancy allowing the surgery for mandibular advancement. At the end of treatment, we could clinically observe a Class I molar/canine relationship, normal overbite and overjet, presence of lip seal, type I facial profile with considerable aesthetic improvement.

Evaluation of different methods for removing oral biofilm in patients admitted to the intensive care unit.

Background: The present study aimed to evaluate the different methods for removing oral biofilm in combination with 0.12% chlorhexidine, in patients admitted to the intensive care unit (ICU) of the General University Hospital.

Materials And Methods: Initially, the patients were included in the study and underwent periodontal evaluation by means of the visible plaque index (VPI) and gingival bleeding index (GBI).

Unusual dermoid cyst in oral cavity.

Dermoid cysts in oral cavity are unusual lesions. Their etiology is not yet clear and can be associated with trapped cells as a result of the inclusion error resulting in the development into the ectoderm, mesoderm, and endoderm tissues. The aim of this case report is to evidence the presence of a dermoid cyst in the floor of mouth surgically removed.

Lipid Profile Parameters under influence of Periodontitis Associated with Chronic Stress: An Animal Model Study.

Background: The present study compared the effect of two chronic stress models associated with periodontitis induced in rats on partial lipid profile parameters.

Materials & Methods: Forty-eight rats were divided into 4 groups: physical stress+periodontitis, variable stress+periodontitis, periodontitis and control. Physical stress and variable stress occurred over 60 days.

Effect of chronic stress in newborn rats on the progression of ligature-induced-periodontitis in adulthood.

Purpose: To investigate the effect chronic stress in newborn rats on the progression of ligature-induced-periodontitis in adulthood.

Methods: Ten couples of adult Wistar rats were selected for mating. After birth, the female and their respective offsprings were allocated into two groups.

Effects of forced alcohol intake associated with chronic stress on the severity of periodontitis: an animal model study.

This study histometrically evaluated the effect of forced alcohol intake by stressed animals on the severity of ligature-induced periodontitis in rats. Thirty-two rats were randomly divided in four groups: group GAL-alcohol and ligature; group GASL-alcohol, chronic physical stress, and ligature; GNC-negative control; GPC-positive control. GAL and GASL received 20% ethanol ad libitum, and GNC received water ad libitum for 60 days.

Effects of two chronic stress models on ligature-induced periodontitis in Wistar rats.

Objectives: The present study aims at comparing the effects of physical and variable chronic stress on ligature-induced periodontitis in rats.

Design: Forty-eight adult Wistar rats were randomly assigned to four groups (n=12): physical stress, variable stress, positive control and negative control. The models of physical stress were immobilization and immobilization associated with exposure to cold.