The Relationship Between Body Mass Index and Periodontitis
Condition: Obesity; Periodontitis
MeSH terms: Periodontitis
Study type: Observational

Summary: 
      This study aimed to examine the relationship between body mass index (BMI) and stage/grade of
      periodontitis per the current classification of periodontal diseases.

      142 patients (82 males/60 females) were included in this study. "2017 World Workshop on the
      Classification of Periodontal and Peri-Implant Diseases and Conditions" was taken as basis to
      characterize the stage/grade of periodontitis. As well as age, gender, smoking status, and
      frequency of tooth brushing, medical data of the patients including hypertension,
      hyperlipidemia, BMI, and diabetes mellitus were obtained from the patient's hospital records.
      Obesity was assessed by BMI using the "World Health Organization" criteria.
    

Detailed description: 
      In this retrospective study, dental and medical records of 200 patients diagnosed with
      periodontitis who applied to Baskent University, Faculty of Dentistry, Department of
      Periodontology between January 2019 and January 2021 were reviewed. Fifty three patients were
      excluded due to unclear or missing data, and five subjects were not included as they were
      under the age of 18. The final study population therefore consisted of 142 patients (82
      males/60 females).

      As well as age, gender, smoking status, and frequency of tooth brushing, medical data of the
      patients including hypertension, hyperlipidemia, BMI, and diabetes mellitus were obtained
      from the patient's hospital records.

      Periodontal records of the patients were obtained for six different sites (mesio-buccal,
      mid-buccal, disto-buccal, mesio-lingual, mid-lingual, and disto-lingual) per tooth.

      Mean ± standard deviation (SD) and median (minimum-maximum) were utilized for quantitative
      variables, and number of patients (percentage) were utilized for qualitative variables as
      descriptors. For quantitative variables, Kruskal-Wallis H test was performed to see whether
      there was a statistically significant difference between categories of the qualitative
      variable with more than two categories. Chi-square test was used for investigating the
      relationship between two qualitative variables. For determining the risk factors considered
      to have an effect on the dependent quantitative variable, univariate and multivariate
      logistic regression analyses were performed. Statistical significance level was defined to be
      0.05.
    

Intervention name(s): Measuring pocket depth
Intervention type(s): Other
Intervention description(s): Probing pocket depth (PPD = distance between gingival margin and bottom of the periodontal pocket)were evaluated in each patient. All periodontal measurements were recorded at six sites around each tooth by a periodontal probe excluding third molar
Observational model: Other
Time perspective: Retrospective
Sampling method: Non-Probability Sample
Study population: 
        Patients diagnosed with periodontitis who applied to Baskent University, Faculty of
        Dentistry, Department of Periodontology between January 2019 and January 2021