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It is important to know child bruxism symptomatology and etiology. It will allow diagnosis by simple endo and exo oral examination, in deciduous and mixte denture. Early treatment of bruxism can then be established, preserving integrity of permanent denture.
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Overdenture principles can be applied to dentitions that are relatively complete without preparation or alteration of the existing teeth. Such overdentures may cover the traditional denture-bearing tissues as well as the unaltered remaining teeth. The primary advantages derived are reversibility, simplicity, and cost effectiveness. The primary indications are restoration of congenital and acquired anomalies. A detailed clinical and laboratory technique for fabricating these overdentures is presented. Effective restorations require care and attention to detail using the principles of conventional prosthodontics. No special equipment or material is needed. Two patient histories are presented, illustrating use of the technique.
The paper analyses the incidence and etiology of bruxism through a review of the literature. The effects that this pathology has on teeth are discussed and there is a brief discussion of therapy.
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Removable partial overdentures are an option that should be considered by every dentist who is involved with cosmetic dentistry or dentistry for the older adult. The rationale, indications, and technique have been described for providing an aesthetic, functional prosthesis that is also conservative in nature. The reversibility of the procedure allows the patient the opportunity to pursue other forms of treatment should the result not meet his or her expectations. For appropriately selected special patients, the results can be extremely gratifying for both the patient and dentist.
In the elderly, but increasingly also in middle-aged patients, root lesions are a major problem in everyday practice. Formerly, the cause of these root destructions was usually caries attack due to a failure of patients to practise adequate oral hygiene measures. However, with increasing dental motivation and health consciousness, patients--for example in the USA, Scandinavian countries and Switzerland--cause such lesions by vigorous, badly controlled brushing, often in combination with the consumption of 'healthy' vegetarian, erosive diets. The former problem of carious root destruction due to neglect thus seems to be gradually being replaced by the problem that self-care is not yet thoroughly understood, is exaggerated and is technically inadequate. Faulty brushing may result in severe damage to those gingival sites that require attention cariologically as well as periodontologically. To exploit all possibilities of (secondary) preventive management of patients, careful investigation and analysis of the clinical signs is required to identify the aetiology of the lesions in each case. Fortunately, therapeutic management of root lesions, regardless of their aetiology, is facilitated by modern restorative techniques and materials.
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In order to get a better adhesion, less tooth abrasion and a good marginal sealing, bonding agent was used in the composites restorations. PM visible light cured bonding agent containing coupling agent 4-META was made. Polyfunctional monomer was used as the resin matrix. CQ and PA were used as the initiator. The tensile bonding strength of this bondx286p4ent to enamel was 84.5 kg/cm2. The shear bonding strength of this bonding agent to enamel when used with visible light cured composites together was 317.3 kg/cm2, which was higher then the report in the recent literatures. PM visible light cured bonding agent got a satisfied clinical result.
In a clinical study non-cariogenic chronic dental surface losses were registered in 300 patients, aged 16-35 yr. Nearly in all patients attrition could be stated especially in the anterior tooth area. Wedge-shaped defects occurred in 13% and erosions in 4% of the examined patients. Early recognition, dynamic observation, search for pathogenic moments as well as the preventive and curative early intervention with simple methods are recommended.
The surface of wedge shaped defects of 51 extracted teeth was examined with the scanning electron microscope. To study morphology of surfaces of 12 defects in vivo a replication technique was carried out. It was shown that there is a relation between the morphological features and the clinical symptoms. In the progression of the defects there are active and passive phases, what will be reflected on the one side in the clinical symptoms and on the other side in the morphological features.
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The rubbing application of a hydrochloric acid-pumice mixture has been advocated for the removal of fluorotic-like areas of permanent teeth. However, there have been no previous reports as to the amount of enamel removed during this process. The objective of this project was to measure the amount of enamel lost during successive rubbing applications of an 18% HCl-pumice mixture. Nine extracted permanent molars were mounted in die stone, and each was subjected to 10 sequential 5-sec rubbing applications of an 18% HCl-pumice mixture. After rubbing for 5 sec, the teeth were rinsed with water for 10 sec and then thoroughly dried. Enamel loss was measured to the nearest micron utilizing a measuring microscope with 3-dimensional digital stage positioning. Measurements were taken at the consistent x,y coordinates of three points on the tooth surface after each application. The change in the z coordinate, representing the spatial change in the location of the enamel surface, was recorded for each point after each application on the tooth. Regression analysis revealed enamel loss of 12 microns after the initial application, and an average of 26 microns of enamel loss after each successive application. The regression coefficient was significant at P less than 0.001.
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