Objetivo : Analisar a carie dentaria, o Indice de Performance de Higiene Oral e o Indice Periodontal Comunitario na populacao ribeirinha da regiao norte do Estado de Rondonia, residente as margens dos Rios Machado e Preto. Metodos : Para a avaliacao de carie dentaria e Indice Periodontal Comunitario, utilizou-se o formulario preconizado pela Organizacao Mundial da Saude, sob luz natural, com utilizacao de espatulas de madeira e sonda Indice Periodontal Comunitario (ball point). Resultados : Observou-se entre 4 e 5 anos de idade, indice ceod 4,30 (dp:3,48) e 19,64% livres de carie; aos 12 anos de idade, CPOD 2,65 (dp:3,01) e 30,76% livres de carie; aos 18 anos de idade, CPOD 5,41 (dp:5,33) e 19,51% livres de carie; entre 35 e 44 anos, CPOD 17,74 (dp:8,61) e 2,98% livres de carie; entre 65 e 74 anos, CPOD 21,56 (dp:11,95) e 4,34% livres de carie. Quanto ao Indice de Performance de Higiene Oral, observou-se que a educacao em saude bucal traz melhores condicoes de higiene, haja vista a queda acentuada na maioria das comunidades estudadas. E, no Indice Periodontal Comunitario, notou-se uma queda entre os valores do indice, porem ainda com elevada presenca de calculo e tambem de quadrantes excluidos. Conclusao : A populacao estudada apresentou indice de carie dentaria elevado e problemas periodontais cronicos, sendo necessaria a atuacao em âmbito educativo, preventivo e curativo na populacao. 
 
 Termos de indexacao : Carie dentaria. Educacao. Epidemiologia. Higiene bucal. Saude Publica. 
 
 
 ABSTRACT Objective : This study analyzed dental caries, patient hygiene performance index (PHPI) and community periodontal index (CPI) of a riparian population from the northern region of the state of Rondonia, living at the Machado and Preto riverbanks. Methods : Dental caries and CPI were analyzed as recommended by the World Health Organization, under natural light using wooden spatulas and a ball tip WHO periodontal probe. Results : The DMF index of 4 and 5 year-olds was 4.30 (SD=3.48) and 19.64% were free from caries. Among 12-year-olds, the DMF index was 2.65 (SD=3.01) and 30.76% were free from caries. Among 18-year-olds, the DMF index was 5.41 (SD=5.33) and 19.51% were free from caries. Among 35- to 44-year-olds, the DMF index was 17.74 (SD=8.61) and 2.98% were free from caries. Among 65- to 74-year-olds, the DMF index was 21.56 (SD=11.95) and 4.34% were free from caries. The PHP Index showed that oral health education improves oral hygiene since this index decreased substantially in most of the studied communities. The CPI values decreased but calculi and excluded quadrants were still very common. Conclusion : The studied population presented a high caries index and chronic periodontal problems. Educational, preventive and curative actions are needed for this population. 
 
 Indexing terms : Dental caries. Education. Epidemiology. Oral hygiene. Public health.

Cárie dentária, índice periodontal comunitário e higiene oral em população ribeirinha

Background: Pimenta pseudocaryophyllus is a native species from Brazil, whose leaves are used in the traditional culture as medicinal plants, being reported with antimicrobial and antifungal properties. Objectives: The aim of this study is to analyze and characterize the chemical composition of the essential oil (EO) extracted from the leaves of P. pseudocaryophyllus, as well as to evaluate its potential for antimicrobial activity against pathogenic bacteria inhabiting the human oral cavity. Materials and Methods: The extraction was performed by steam distillation and the chemical composition was analyzed using gas chromatography-mass spectrometry (GC-MS). The antimicrobial potential of the EO against Staphylococcus aureus, Pseudomonas aeruginosa, and Enterococcus faecalis was evaluated by agar well diffusion method. Different dilutions of the EO (10, 5, 2.5, 1.25, 0.625, 0.312, 0.156, 0.078, and 0.039%, v/v) were tested against the micro-organisms in disk diffusion tests to evaluate the minimum inhibitory concentration. Results: The extraction yielded 0.65% of EO in relation to fresh leaves of P. pseudocaryophyllus. GC-MS analysis identified eugenol, eucalyptol, and limonene as the major compounds of its. The material showed antimicrobial activity, especially against E. faecalis, with moderate activity against S. aureus, both at concentrations from 1.25% to 10%. Conclusion: The results suggested that this EO presents potential of activity against the oral micro-organisms here evaluated.

Evaluation of the chemical composition and oral antimicrobial activity of the essential oil from the leaves of Pimenta pseudocaryophyllus (Gomes) landrum

Elaine Cristina Rosas

Papers

Evaluation of the chemical composition and oral antimicrobial activity of the essential oil from the leaves of Pimenta pseudocaryophyllus (Gomes) landrum