Related Experiment Video
Updated: Feb 23, 2026

Robust Ligature-Induced Model of Murine Periodontitis for the Evaluation of Oral Neutrophils
Published on: January 21, 2020
Prevalence, severity and extent of chronic periodontitis among Sri Lankan adults
1Ministry of Health, Nutrition and Indigenous Medicine, Colombo, Sri Lanka.
Objective:
to determine the prevalence, severity and extent of chronic periodontitis among 30-60 year old adults residing in Colombo district, Sri Lanka.
Basic Research Design:
a cross-sectional study with interviews and oral examinations.
Participants:
1400, 30-60 year olds residing in Colombo district.
Results:
the prevalence of mild, moderate and severe chronic periodontits was 1.4%, 36.1% and 13.5% respectively and the prevalence was significantly associated with sex, age group, ethnicity, level of education, smoking status and self-reported diabetes. The mean probing pocket depth (PPD) was 2.05mm (SE=0.02) and of the sample, 77% and 31% had at least one site with PPD of ≥4 and ≥6mm respectively. The mean clinical attachment loss (CAL) was 2.53mm (SE=0.03) and 99% and 81% of the sample had at least one site with CAL of ≥3mm and ≥5mm respectively. The extent of periodontitis determined according to the mean percentage of sites with ≥4 and ≥6mm of PPD were 8.40 (SE=0.34) and 1.37 (SE=0.11) respectively. Further, the extent of periodontitis according to the mean percentages of sites with ≥3 and ≥5mm of CAL were 39.73 (SE=0.66) and 10.95 (SE=0.43) respectively.
Conclusions:
the prevalence, severity and extent of chronic periodontits are high among adults in Colombo district. Their periodontal status was poorer than in previously reported studies conducted in the same district.
More Related Videos
06:36Effects of Mechanical Methods Used in Peri-implantitis Treatment on Implant Surface Decontamination and Roughness
Published on: March 14, 2025
06:06Adjunctive Diode Laser Therapy and Probiotic Lactobacillus Therapy in the Treatment of Periodontitis and Peri-Implant Disease
Published on: May 9, 2022
Related Concept Videos
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
Chronic Obstructive Pulmonary Disease-I: Introduction
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...