The first permanent molar (FPM) plays an essential role in the masticatory function by contributing to the implementation and the maintenance of the occlusion. However, it is considered as the most frequently affected and the earliest affected tooth by caries; 27.4% of the 6-8 years old children have developed at least one cavity on one of the four first permanent molars, according to a study conducted among 3276 school children in Casablanca .Therefore, the FPM should benefit from special vigilance on the part of the practitioner to ensure that any early carious lesion is intercepted. In addition, the FPM, due to its period of mineralization coinciding with early childhood diseases, can erupt with a structural abnormality. Molar incisor hypomineralization (MIH) is considered to be the most common defects observed on first permanent molars among children. A study conducted among 1077 children aged 7-10 years enrolled in schools in Casablanca showed that 7.9% of children were affected with MIH. About 84.7% of the children had the four molars affected. Children with HIM had a significantly higher prevalence of caries: 78.8 versus 33.5%.These structural abnormalities of the enamel must be carried out earlier to ensure that the coronary anatomy is the least compromised.

Treatment of necrotic immature teeth has always been a real challenge for the clinician due to the open apex and weak root structure, which does not allow a conventional endodontic treatment. Several therapeutic options are possible to treat those teeth. Calcium hydroxide apexification is the oldest and most studied therapeutic option, but it has some disadvantages, including the long term of treatment, the possibility of reinfection, and the weakness of the wall. To solve these problems, several authors recommend the revascularization technique. This therapy allows the continuation of root edification with apical closure and thickening of the walls. The aim of our work is to compare the two therapeutic procedures, apexification with calcium hydroxide and revascularization, through a clinical case treated and followed up for 24 months at the pediatric dentistry department in Casablanca, Morocco.

Objective: The aim of the present study was to assess the prevalence of the early childhood caries (S-ECC) and its impact on preschool children’s life (aged 4-6), as well as on their parents, in one of the most popular prefectures in Casablanca, Morocco. Materials and Methods: Parents of 546 children attending 11 randomly selected preschools (7 private and 4 public institutions) were invited to complete 13 items of an oral health questionnaire and had their children undergo a dental examination. The quality of life was evaluated using the Early Childhood Oral Health Impact Scale (ECOHIS). Statistical analysis: The data collected were analyzed using the SPSS (Statistical Package for the Social Sciences). To find the comparison between groups, Chi-square test was used. Results: The prevalence of the ECC and the S-ECC were 74.2% and 47.3% respectively. The negative effect of S-ECC on children’s quality of life has many aspects: 59.3% of them have experienced tooth pain, 41.5% have reported eating difficulties, and 41.3% have had drinking difficulties. Moreover, 40% of parents expressed feelings of guilt and 10.6% had to take time off work due to their children’s oral health status. On another note, the financial impact of the S-ECC was also significant. Conclusion: The S-ECC negatively impacts the life quality of children aged between 4 and 6 years old in addition to their parents’. This suggests a need for further strategic planning and preventive program adapted to such a public health problem.

Objectives: The objectives of this study are to evaluate the efficacy of midazolam as a means of conscious sedation in pediatric odontology through three routes of administration: oral, rectal and nasal administration, to compare the efficacy of these different routes and to assess the general safety of Midazolam. Materials and Methods: Thirty healthy non-cooperating (ASAI) patients (levels 1 and 2 on the FRANKL scale), aged 2 to 5 years and requiring a minimum of three dental sessions were recruited. Each patient received three sessions of sedation, using a different route of administration each time: oral (0.5 mg/kg), rectal (0.3 mg/kg) and nasal (0.2 mg/kg). The assessment of the behavior throughout the dental care was made using the Houpt scale. Physiological parameters(heart rate and oxygen saturation) were measured every five minutes to assess tolerance. Results: The three routes of administration of midazolam were considered effective since all patients presented a behavior allowing a complete management without interruption of care except for one patient. The sedative effect of the oral and rectal routes was similar, as to the nasal route, it was judged to be clinically better but without any statistically significant differences. The most accepted route of administration by patients was the oral one followed by the nasal and rectal routes. No intolerance to midazolam was observed. Conclusion: Midazolam is an effective sedative for dental care, acceptable by patients and well tolerated regardless of the route of administration.

No abstract