The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform

Ahmed Abdel Rahman Hashem - One of the best experts on this subject based on the ideXlab platform.

  • accessory roots and root canals in human Anterior Teeth a review and clinical considerations
    International Endodontic Journal, 2016
    Co-Authors: Hany Mohamed Aly Ahmed, Ahmed Abdel Rahman Hashem
    Abstract:

    Anterior Teeth may have aberrant anatomical variations in the number of roots and root canals. A review of the literature was conducted using appropriate key words in major endodontic journals to identify the available reported cases as well as experimental and clinical investigations on accessory roots and root canals in Anterior Teeth. After retrieving the full text of related articles, cross-citations were identified, and the pooled data were then discussed. Results revealed a higher prevalence in accessory root/root canal variations in mandibular Anterior Teeth than in maxillary counterparts. However, maxillary incisor Teeth revealed the highest tendency for accessory root/root canal aberrations caused by anomalies such as dens invaginatus and palato-gingival groove. Primary Anterior Teeth may also exhibit external and internal anatomical variations in the root, especially maxillary canines. Therefore, dental practitioners should thoroughly assess all Teeth scheduled for root canal treatment to prevent the undesirable consequences caused by inadequate debridement of accessory configurations of the root canal system.

Gordon J. Christensen - One of the best experts on this subject based on the ideXlab platform.

  • Resin restorations for Anterior Teeth—1995
    Journal of the American Dental Association (1939), 1995
    Co-Authors: Gordon J. Christensen
    Abstract:

    Resin restorations for Anterior Teeth, properly planned and well placed, should be expected to serve many years. Small resin restorations in Anterior Teeth may even be lifetime restorations. Class III, IV and V resin restorations with large facial display are best when hybrid resin is placed internally and microfill resin is placed facially. Restorations without significant facial display are best treated with hybrid resin alone. Although new, more refined resin systems will come, the current state of the art for Anterior resin restorations is excellent and certainly the best it has ever been.

Wu Mang-man - One of the best experts on this subject based on the ideXlab platform.

  • The effect of Anterior Teeth alignment on the stress distribution of supporting tissues under maxillary complete denture base
    Chinese Journal of Prosthodontics, 2007
    Co-Authors: Wu Mang-man
    Abstract:

    Objective:To investigate the influence of Anterior Teeth alignment on the stress distribution of edentulous supporting tissues under maxillary complete denture base. Methods: Three dimensional finite element models were established to simulate maxillary supporting tissues and complete denture with different Anterior Teeth alignmentarrangement. The stress distribution was analyzed in different edentulous tissue areas under different loading. Results: Under Anterior Teeth loading, bilateral posterior Teeth loading and full Teeth loading conditions, the peak compressive stress appeared in labial frenum notch zone, posterior alveolar ridge zone and posterior alveolar ridge and labial frenum notch zones respectively. The stress distribution of edentulous supporting tissues varies varied with the change of Anterior Teeth position. Conclusion: The upper Anterior Teeth position obviously affects the stress distribution of supporting tissues under denture base. Under full Teeth and Anterior Teeth loading, the stress was is higher in labial frenum notch zone.

Liu Yu - One of the best experts on this subject based on the ideXlab platform.

  • Application of glassfiber posts on restoration of maxillary Anterior Teeth
    Chinese Journal of Conservative Dentistry, 2010
    Co-Authors: Liu Yu
    Abstract:

    AIM:To compare the clinical effect of glassfiber posts with pure titanium posts on the restoration of maxillary Anterior Teeth.METHODS:After endodontic treatments,198 and 143 Anterior Teeth were restored with glassfiber posts and pure titanium post respectively and were followed up for 12 months.RESULTS:At the end of follow-up,5 debonded posts,3 fractured roots and 5 Teeth showing black gingival line were found in the pure titanium post group.In the glassfiber post group,only 2 broken glassfiber posts and 1 debonded post were found.No fractured root or black gingival line was found.CONCLUSION:Our results indicate that glassfiber post is better than pure titanium posts in Anterior Teeth restoration.

Khalid A. Al Wazzan - One of the best experts on this subject based on the ideXlab platform.

  • The visible portion of Anterior Teeth at rest.
    The journal of contemporary dental practice, 2004
    Co-Authors: Khalid A. Al Wazzan
    Abstract:

    The visibility of Anterior tooth surfaces with lips at rest or during function is an important factor in determining prosthodontic outcome. There is a lack of sufficient information published on this subject. The aim of this study was to investigate the degree of visibility of maxillary and mandibular Anterior Teeth surfaces when the lips are at rest. Four hundred seventy three adults were examined. All the subjects had maxillary and mandibular Anterior Teeth present with no caries, restorations, severe attrition, mobility, extrusion, or obvious deformities. The portions of Anterior Teeth that were visible were measured vertically using a Boley gauge from the border of the lip to the incisal edge for the incisors and to the cusp tip for the canines. The measurement was taken at the midpoint of the tooth when the lips and lower jaw were at the rest position. The length of the upper lip was measured from the base of the columella to the tip of the philtrum at the midline of the face. Males showed more of the maxillary lateral, canine, and mandibular Anterior Teeth than females. With increasing age, the amount of maxillary Anterior Teeth that was visible at rest decreased. The subjects with shorter upper lips displayed more maxillary central incisor structure than those with longer upper lips. Racial differences were not found. The amount of visible portions of Anterior Teeth is determined by muscle positions that vary from person to another. It provides an excellent starting point for vertical positioning Anterior Teeth that can be modified as necessary in any clinical situation. The findings of this study should help the dentist in providing aesthetic prosthodontic treatment that involves replacement of Anterior Teeth. A useful guideline for positioning Anterior Teeth is suggested.

  • The relationship between intercanthal dimension and the widths of maxillary Anterior Teeth.
    The Journal of prosthetic dentistry, 2001
    Co-Authors: Khalid A. Al Wazzan
    Abstract:

    Abstract Statement of Problem. One of the difficult aspects of complete denture prosthodontics is the selection of appropriately sized maxillary Anterior Teeth. Many attempts have been made to establish methods of estimating the combined width of maxillary Anterior Teeth and/or central incisors. Purpose. The aim of this investigation was to determine whether a relationship exists between the intercanthal dimension and 4 mesiodistal width combinations of the maxillary Anterior Teeth. Material and Methods. The maxillary Anterior Teeth of 443 adult subjects were examined. Intercanthal distance was measured between the median angles of the palpebral fissure. The mean widths of the 2 central incisors, the combined widths of the central incisors, the combined width of the 4 incisors, and the combined width of the 6 Anterior Teeth were determined intraorally at their widest dimension. Pearson correlation coefficients were calculated to determine the relationship between intercanthal distance and the 4 measurements of maxillary Anterior Teeth (α=.05). Results. Although the Pearson correlation coefficients were relatively small, a significant relationship existed between intercanthal dimension and the 4 maxillary Teeth dimensions ( P Conclusion. Within the limitations of this study, the results suggest that intercanthal distance can be used as a preliminary method for determining the width of the maxillary Anterior Teeth for edentulous patients. (J Prosthet Dent 2001;86:608-12.)