Perception of altered smile esthetics among Moroccan professionals and lay people.

OBJECTIVE: To evaluate and compare the impact of altered smile characteristics on the perception of smile esthetics between Moroccan dentists and lay people. MATERIALS AND METHODS: Thirty-four digital smile photographs displaying alterations in crown length and width, lateral incisor gingival margin position, gingival exposition, midline diastema, and upper midline deviation were presented to a sample of 30 dentists and 30 lay people. The ratings were assessed with a visual analog scale. RESULTS: Compared to that of lay people, Moroccan dentists' evaluation of the gingival smile was more critical when the decrease in central incisor crown length was 2.5 mm (p < 0.001) or greater and when the increase in gingival exposition was 4 mm or greater (p < 0.01). Moroccan dentists were also critical in their evaluation of maxillary lateral incisor crown width alterations (p < 0.05) and incisal midline deviations (p < 0.05). However, the professionals and lay people similarly evaluated irregularities in the incisor gingival margin position. Increases in the midline diastema were judged critically by both Moroccan dentists and lay people. CONCLUSIONS: In this sample, Moroccan dentists evaluate smile esthetic alterations more critically than Moroccan lay people. This difference in perception of smile discrepancies must be taken into account during the finishing phases of orthodontic treatment and restoration of the anterior teeth in Moroccan patients.

[Orthodontic treatment and gingival hyperplasia: a case report]. / Traitement orthodontique et hyperplasie gingivale. A propos d'un cas.

Gingival hyperplasia is a relatively frequent pathologic condition during orthodontic treatment. Oral hygiene can be easily altered in such cases because of additive and irritative effects of orthodontics appliances. So, adequate control of the gingival inflammation is required. The present case reports on a 13-year-old boy who developed, during orthodontic treatment, a gingival hypertrophy that was successfully treated with periodontal surgery consisting on an apically positioned flap procedure. For this purpose, multidisciplinary approach involving orthodontist and periodontist was crucial in the perspective of optimal clinical issues.

[Cephalometric determination of the occlusion plane: the Broadrick flag technique]. / Détermination céphalometrique du plan d'occlusion la technique du drapeau.

Based on the principle of the sphere of MONSON, the Broadrick flag technique constitutes a relatively simple means to determine the plan of occlusion, by using a radius fixes of 104 mm. The theory of MONSON was debated a long time. Our work consists of a clinical study realized in the CCTD of Casablanca, on 31 completely toothed cases normocclusion. Its objective was triple: to calculate on the profile teleradiographies, the anatomical and geometrical rays used for the construction of SPEE curve, to see if there is concordance between these two rays and finally to compare them with the theoretical value of 104 mm. From the obtained results it would seem that: The 104 mm value, cannot be considered as a standard average to be used to determine the curve of occlusion, also the articulator such as it is designed currently cannot be used in all the patient's about is the values of their rays. In the absence of molars, the anatomical radius cannot be used in place of the geometrical radius to determine the curve of occlusion. The measured gap between the obtained curve and the plan of occlusion remains not insignificant, he can reach 3 mm for the anatomical radius and 3,5 mm for the geometrical radius. In the total edentate, the cephalometric determination of occlusion plane, by basing itself on the anatomical radius or the geometrical radius is not possible.

Apical root resorption in patients wearing orthodontic appliances.

The aim of our study was to evaluate the incidence of orthodontically induced root resorption during the tooth alignment and leveling phase, and to assess the impact of the variables age, sex and degree and direction of incisor displacement. We studied a consulting population at the dentofacial orthopaedics unit of the Dental Consultation and Treatment Centre (DCTC), Casablanca. Our sample was composed of 30 exposed cases and 30 non-exposed cases, followed up for a period of 8 months. A survey document was drawn up for data collection, and retro-alveolar radiographic imaging was used to evaluate resorption. Our results showed that the patients receiving orthodontic treatment all developed minor root resorptions during the alignment and levelling phase in the incisor group. We found that the central incisors underwent greater resorption than the lateral incisors.

Elongation coronaire chirurgicale

L'elongation coronaire est une chirurgie parodontale dont le but est la restauration de l'integrite de l'espace biologique ou la correction d'un sourire gingival. Elle represente souvent un prealable essentiel avant les rehabilitations prothetiques. Ceci permet d'avoir des resultats predictibles a long terme. Cet article decrit les indications; les techniques les plus communes d'elongation coronaire et les imperatifs a prendre en consideration pour l'optimisation et la perenite du resultat esthetique et fonctionnel des restaurations prothetiques

Traitement orthodontique et prevention du risque carieux

Le traitement orthodontique chez l'enfant se solde souvent par la presence de sequelles souvent indelebiles sur certaines dents qui resultent d'un mauvais suivi clinique.C'est pourquoi le role du pedodontiste est primordial a tous les stades du traitement d'orthodontie. La complementarite de l'orthodontiste et du pedodontiste doit se manifester non seulement avant le traitement orthodontique; mais aussi pendant et apres celui-ci.Avant le traitement orthodontique; la preparation bucco-dentaire est une etape primordiale puisqu'elle permettra d'assainir la cavite buccale. Le pedodontiste doit aussi intervenir au cours du traitement et des la fin de celui-ci afin d'intercepter toutes les anomalies passageres avant l'installation des complications