Kunal Kumar

Abstract

Introduction: This study was done to compare microorganisms around dental implants inserted in site of missing mandibular first molars and in subgingival plaque of patients with chronic periodontitis.  Materials and Method: This study comprised of 20 chronic periodontitis patients and 20 patients who received dental implants. Subgingival plaque and peri-implant biofilm were sampled in both groups which were evaluated using 454-prosequencing of bacterial V1 to V3 regions of 16S rDNA. Results: The mean probing depth in group I was 6.8 mm and in group II was 2.4 mm, clinical attachment level in group I was 7.3 mm and in group II was 0 and bone loss in group I was 6.7 mm and in group II was 0. The most predominant microorganisms in group I was Catonella, Desulfovibrio, Mogibacterium, Peptostreptococcus, Actinobacillus actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythensis and Treponema denticola. The three most abundant OTUs linked with the implant were Pseudomonas, Leptotrichia hongkongensis and Granulicatella adiacens. Conclusion: Comparison of subgingival biofilms in patients with chronic periodontitis and biofilms around dental implants revealed significant diversity. It was found that dental implants may alter the composition of microbiome. Clinical significance: Knowledge about comparison of subgingival biofilms in patients with chronic periodontitis helps in taking preventive precautions for successful out cone of dental implants. Keywords: Subgingival biofilms, Microbiome, Implants.

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Abstract

Introduction: Edentulism is loss of all natural teeth. Depression increases the risk of poor oral health especially in elderly population with edentulism. This study was done to evaluate edentulism in elderly subjects and its association with depression. Materials and Methods: This prospective study included 530 completely edentulous patients. Personal Health Questionnaire-8 (PHQ-8) was administered to all patients to assess the depression level. Parameters such as marital status, education, socio- economic status were also recorded. Results: Out of 530 patients, males were 270 and females were 260. 265 patients had education up to primary standard, 150 had high and 115 had secondary standard, 270 had low socio- economic status, 180 had middle and 80 had high socio- economic status, 518 were married and 12 were unmarried. The difference was statistically significant (P< 0 CI=1.02–1.18), xss=removed CI=1.20–2.38) CI=1.26–2.06).> Conclusion: Authors found that edentulism was more prevalent among patients with poor socio- economic status, married and patients with education level upto primary level. Most of the patients had depression symptoms, thus suggesting association of depression with tooth loss. Keywords: Depression, Edentulism, Psychiatric illness.

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