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Introduction: Controlling and preventing oral diseases of patients with mental and physical disabilities had become one of the most important topics within the realm of dentistry researches. The main objective of this study was to examine oral hygiene and care needs of deaf and blind 6-12 years old exceptional school children in Kermanshah in 2015., Materials and Methods: Oral hygiene of 51 deaf and blind 6-12 years old exceptional school children in Kermanshah in 2015 was examined in this study; indicators which underwent assessment included DMFT/decay, missing, falling, teeth (dmft), Gingival Index (GI), Plaque Index (PI), brushing, and flossing; the amount of used Unmet Treatment Need (UTN) was measured using DMFT/dmft index, and collected data were analyzed using SPSS, version 18., Findings: The mean and standard deviation of GI and PI of the 51 deaf and blind students examined turned out to be 1.39 ± 0.30 and 0.86 ± 0.15, respectively; DMFT, dmft, and UTN of the blind students were 1.31 ± 1.20, 2.81 ± 2.81, and 0.76 ± 0.34, respectively; these values turned out to be 1.81 ± 2.16, 2.08 ± 3.48, and 0.85 ± 0.31, respectively, in case of deaf students. According to the results of this study, 18.7% of blind students and 27% of deaf students brushed their teeth once on a daily basis., Conclusion: Based on the results of this study, the incidence and severity of dental caries, particularly in primary teeth, were high among these children (mean: 2.06) and a large number of their teeth needed treatment (UTN: 1.18). In comparison to their peers, these group of children had lower state of oral health; therefore, a systematic, long-term is definitely required for the improvement of oral hygiene of studied patients., Competing Interests: There are no conflicts of interest.

Background: Localized gingival recession can be treated successfully via coronally positioned flap (CPF) and additional use of root surface demineralization agents. The purpose of this study was to evaluate the effects of additional use of ethylene diamine tetraacetic acid (EDTA) and citric acid as a root conditioner in association with CPF to cover localized buccal gingival recessions., Materials and Methods: Twenty-seven patients with 66 Miller class I buccal gingival recession ≥ 2 mm on single-rooted teeth were studied. Patients were randomly assigned: CPF with EDTA gel (test 1) and CPF with saturated citric acid (test 2) or CPF alone (control). Clinical parameters were measured at baseline and 1, 2, 3 and 6 months after surgery; assessment included recession depth (RD), clinical attachment level (CAL), probing depth (PD) and height of keratinized gingiva (HKG). SPSS version-20 was used to perform all statistical analyses. Data was reported as Mean ± SD. Age, RD, CAL, PD, and HKG before treatment and after 6 months among study groups were compared by one-way ANOVA followed by the Tukey test. The level of significance was considered to be less than 0.05., Results: At 6 months, all treatment modalities showed significant root coverage and gain in CAL. RD was reduced from 2.86 ± 0.76 mm to 0.55±0.53 mm in the EDTA group and from 2.37±0.57 mm to 1.03±0.43 mm in the acid group and from 2.37±0.54 mm to 0.85±0.49 mm in the control group. The average percentage of root coverage for the EDTA, acid, and control groups were 80.73%, 52.16%, and 64.50%, respectively. At 6 months, there was a significant difference (P < 0.05) in all parameters for the EDTA group (except HKG that did not vary among the groups)., Conclusion: Root preparation with EDTA was an effective procedure to cover localized gingival recessions and significantly improved the amount of root coverage obtained.