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131.Bond strength of orthodontic retaitwo techniques for bonding lingual ner
Dr. R. FARES AL-SEHAIBANY, DR. SULAIMAN AL-EMRAN
DR. FAISAL AL-KHATANI , DR. YASSER AL-ALI
College of Dentistry, King Saud University ,Riyadh, Saudi Arabia
The aim of this study was to compare the shear bond strength of two techniques for bonding lingual orthodontic retainer; the chairside modified bonding technique and the chairside manual bonding technique currently used in orthodontic practice. Sixty-four extracted caries free premolars were divided into two equal groups. Group (A) represented the manual bonding technique, whilst group (B) represented the modified bonding technique. The shear bond strength was tested using the InstronTM machine. Descriptive statistical analysis, Paired t-test and Mann-Whitney test were employed to compare between the findings in this study. Comparing the findings of the two techniques, the modified bonding technique (Group B) showed significantly higher tolerance to the applied load before the bond failure had occurred (P=0.02). Also, group (B) had shown significantly higher degree of displacement of the bonded wire before bond failure (P= 0.05). Manual bonding technique (Group A) had shown 19%, 43.5% and 37.5% of type I, II and III bond failure respectively, whereas modified bonding technique (Group B) had shown 69%, 6% and 25% of similar type of bond failure respectively. Among the two bonding techniques examined in this study, the modified bonding technique had shown superior shear bond strength compared to the manual bonding technique, and was recommended as a technique for bonding fixed lingual retainer for post-treatment retention phase.
Saudi Dental Journal 2006;18(SI)-Abstr.131
132.New horizon In endodontic surgery: A single tooth implant
PROF. ABDELHAMIED Y. SAAD
College of Dentistry, King Saud University, Riyadh, Saudi Arabia
The American Association of Endodontists emphasized that the implant surgery is now within the scope of endodontics. Therefore, the purpose of this work was to present different cases of single tooth implant with long-term follow-up. The procedures consisted of: (1) atraumatic extraction with curettage of the bony crypt, (2) implant placement, (3) bone graft and membrane placement, and (4) soft tissue closure with supportive surgery. Long-term recall revealed successful treatment results as most of the cases were stable and asymptomatic. This technique-sensitive procedure may demonstrate that endodontists should participate in advanced training programs to gain considerable knowledge and experience in diagnosis, treatment planning, and placement of osseointegrated implant before implementing their use in clinical practice.
Saudi Dental Journal 2006;18(SI)-Abstr.132
133.Esthetic and periodontics
Dr. HASSAN AL-HULAIMI , Prof. NADIR BABAY
College of Dentistry, King Saud University,Riyadh, Saudi Arabia
Treatment of gingival recession and gingival defects has become an important therapeutic issue due to the increasing number of cosmetic request from patients. Several approaches had been proposed in the last few years to enhance esthetic demand in periodontics (Nowzari 2001). The selection of one rather another surgical technique depends on factors related the defect while other factors are related to the patient. The effectiveness of these techniques both in term of root coverage and ridge augmentation made them attractive to the patient. These procedures tend to preserve, repair or reconstruct soft and hard tissues based on an established diagnosis and treatment plan that will enhance the aesthetic results. They are usually carried out as adjunctive therapy to other dental treatment like restorative, prosthodontic and orthodontic dentistry. This table clinic presentation will focus on the biological and clinical aspects of these surgical procedures.
Saudi Dental Journal 2006;18(SI)-Abstr.133
134.Electronic probing: How to do it?
Dr. MOHAMMED Y. AL-SAEED, Prof. NADIR BABAY
College of Dentistry, King Saud University, Riyadh, Saudi Arabia
Manual periodontal probing is used to assess different periodontal parameters like probing depth and bleeding on probing. Excessive probing force can induce bleeding from healthy sulcus and overestimate the probing depth (Bulthuis et al. 1998). Standardized probing force is necessary for accurate diagnosis and monitoring of the periodontal condition. In periodontal research, it is more demanding to use a constant force. The Florida probe system is an electronic probe that has a standardized constant force. In addition, it has a resolution of 0.2 mm compared to 1 mm for the commonly used manual probes. This enables the Florida probe to monitor the minor changes in periodontal parameters precisely (Gibbs et al. 1988). This table clinic presentation will focus on how to operate the Florida probe system step by step.
Saudi Dental Journal 2006;18(SI)-Abstr.134
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