[Efficacy of sodium hydroxide at 2.5 %, chlorhexidine gluconate at 0.5 % and calcium hydroxide against Candida albicans]. / Étude de l'efficacité de l'hypochlorite de sodium à 2,5 %, de la chlorhexidine à 0,5 %, et de l'hydroxyde de calcium sur Candida albicans.

INTRODUCTION: Endodontic flora is dominated in the apical part of the channels by strict anaerobic and some facultative anaerobic bacteria but also by Candida yeasts, especially Candida albicans species that are involved in the maintenance and persistence of endodontic infections. Their elimination of the canal system in practice by chemo-mechanical methods of disinfection is not always guaranteed. Thus, this in vitro study was performed to determine the sensitivity of C. albicans with sodium hypochlorite (NaOCl) dosed at 2.5 %, the chlorhexidine digluconate 0.5 % and calcium hydroxide used in inter-session medication. METHODS: The diffusion method was used initially to test the sensitivity of C. albicans strains with the above products. Then a dilution technique has allowed us to determine the minimum inhibitory concentration of these active products on C. albicans. RESULTS: Strains from infected pulp teeth of patients showed a sensitivity of C. albicans to sodium hypochlorite to a minimum inhibitory concentration less than 70µg/mL and 30µg/mL for chlorhexidine. CONCLUSION: This study demonstrated a sensitivity of C. albicans to sodium hypochlorite and chlorhexidine.

[Dental caries in the carceral middle of Dakar]. / La carie dentaire en milieu carcéral dakarois.

Oral diseases, mainly tooth decay and periodontal disease, are among the most common conditions in the world. The tooth decay is very prevalent in developing countries and particularly in disadvantaged backgrounds where insecurity and its corollaries prevail. Thus, our study focused on one of these places: the prisons, characterized by deprivation of liberty, monotony, boredom, and the difficult conditions of detention, brief by a total dependence of the detainee. The aim of this study was to determine the DMFT (Decayed, Missing, Filled Teeth) in detainees dwelling in prisons in Dakar. This cross sectional study included 754 detainees aged 18 years and more with a stay exceeding more than a year, in one of the four main prisons of the capital city, Dakar. The majority of detainees was males (90%), aged between 18 and 35 years (63%) and was staying at "Camp penal" (65%). The proportion of inmates with at least one tooth cavity was 81.3%, those with teeth sealed was 26.1% and the prisoners with missing teeth reached 70.6%. The highest average DMFT was noted at "Camp penal" (7.3) among men (6.5) and among inmates aged 36 to 45 years (6.1) with a significant difference. The tooth decay is particularly worrying in the prison population, hence the urgency to establish a programme of prevention and care of oral diseases in this environment.

[Evaluation of the canal shaping duration with Pro Taper: 50 cases--clinical experience]. / Article original evaluation de la duree de preparation canalaire au Pro Taper: experience clinique a propos de 50 cas.

INTRODUCTION: Shaping canal is one of the most important steps in endodontic treatment. It allows the cleaning solutions to reach the totality of the canal and to control any infection of the canal system. To achieve this goal is not without difficulty with the steel instruments, because of their rigidity. Recently, the Nickel Titanium instruments were introduced in Endodontics, to allow a setting form technically simplified and faster The aim of this study was to evaluate the duration of the canal shaping with the Pro Taper system. MATERIALS AND METHODS: This exploratory study was carried out in Conservative Odontology and Endodontics service (OCE) of the department of Odontology of Faculty of Medicine, Pharmacy and Odonto-Stomatology of the University CheikhAnta Diop of Dakar in 2006. Sixty nine root canals (50 teeth) were shaped with ProTaper. RESULTS: The results showed that an average time of 17.35 minutes was necessary for the shaping of the long canals against 15.38 minutes for the middle canals and 14.29 minutes for the short canals. The average duration of canal shaping of the one-root teeth is 13.76 minutes and 17.77 minutes for the plural root teeth. CONCLUSION: Taking into account the necessity of maintaining the teeth on the arcade during long year; include that we have now to respect imperatively the biological principles during the canal shaping in a restricted duration to realize a dense and hermetic canal obturation of the canal system in the same meeting. The Pro Taper system is so a reliable means.