Resumo:
Aim: This interventional clinical trial evaluated the response to non-surgical periodontal
treatment (NSPT) and modulating factors in patients with periodontitis and a family history of
the disease.
Materials and Methods A total of 52 patients diagnosed with mild or moderate periodontitis
were included. Sociodemographic data, family history of the disease, systemic and oral health
were accessed. Probing Depth (PD), Bleeding on Probing (BOP) and Clinical Attachment Level
(CAL) were assessed before and 6 months after NSPT. Logistic regression analysis was
performed to determine associations between modulating factors and family history of
periodontitis (p≤0.05).
Results: Presence of family history was associated with a higher percentage of sites with final
PD≥5mm (OR=12.0; CI=1.99 – 72.31, P<0.001). Final PD≥5mm was also associated with male
gender (OR= 10.7; 95% CI= 1.96 – 58.16; P=0.01) and lower income (OR = 5.8; CI=1.33 –
24.1; P=0.02). Bleeding on probing and clinical attachment level gain were not associated with
a family history of periodontitis (p ≤ 0.07).
Conclusion: A family history of periodontitis was associated with a higher rate of sites with
probing depth greater than 5mm after 6 months of treatment, but was not related to worse
bleeding on probing rates or clinical attachment level. It is suggested that the presence of
periodontitis in the family can negatively influence periodontal repair after non-surgical
periodontal therapy, and should be investigated in larger population samples.
