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At least 1,693 records · Page 94Linked to original sources
PubMed2001

Oral motor parafunctions among heavy drug addicts and their effects on signs and symptoms of temporomandibular disorders.

AIMS: To investigate the prevalence of temporomandibular disorders (TMD), bruxism, and other oral habits among drug addicts compared to a normal, non-addicted, matched control population, and to assess the detrimental effect of long-term drug abuse on the parameters studied. METHODS: Subjects included 55 drug-addicted patients (51 males and 4 females) randomly selected from long-term addicts using "hard" narcotics and attending a methadone maintenance center and a control group of 52 normal non-addicted individuals (48 males and 4 females) matched to the addicts for age, gender, and socioeconomic status. A clinical examination and a questionnaire were used. One examiner determined that all questions were correctly understood and answered, and a second examiner performed the clinical examinations and was unaware of the results of the questionnaire. RESULTS: The addicted group had a high prevalence of orofacial motor behavior (bruxing, clenching) as well as signs and symptoms of TMD (morning headache, joint noises, joint and masticatory muscle tenderness to palpation, and tooth wear) compared to the controls. Active (voluntary) jaw opening was significantly smaller, although within an acceptable range when compared to the controls. CONCLUSION: Long-term drug abuse detrimentally affects the stomatognathic system, as expressed in a high prevalence of oral motor behavior and signs and symptoms of TMD.

Adolescent↗
PubMed1996

[Occlusion-building with tooth-colored restoration materials].

Severe localized or generalized tooth wear will result in loss of vertical dimension. Rehabilitation of the dimensional height is often required. A causal approach is the choice of preference to prevent progression of destructive processes. However, the etiology of pathological wear is not yet clarified, so reversible and non-destructive tooth saving restorative procedures are essential. For adjustment and stabilization of the occlusion of CMD problems the philosophy and treatment approach are similar. Tooth coloured adhesive restorations can be fabricated in different manners, directly and indirectly. In this article treatment objectives for occlusal rehabilitation are described and two cases presented where tooth coloured restorations are used.

Color↗
PubMedDate not supplied

Effect of occlusal wear on bone loss and Periotest value of dental implants.

PURPOSE: Occlusal overload may contribute to the loss of osseointegration of oral implants, so some clinicians are reluctant to place implants in patients with signs of bruxism. This study evaluated the effect of occlusal wear as a probable sign of bruxism on bone loss and implant stability. MATERIALS AND METHODS: The study investigated 379 patients who had worn implant-retained or implant-supported restorations for many years. Occlusal wear, patient age and gender, time of prosthetic loading, jaw, location in the dental arch, implant diameter, prosthesis construction, occlusal material, periimplantitis, and loosening of the prosthetic construction were recorded. One implant from each patient was selected for radiographic and Periotest measurements. The implant with the highest bone resorption was chosen. A forward stepwise multiple linear regression analysis was performed to analyze the effect of the explanatory variables on Periotest value and radiographic bone loss. RESULTS: The statistical models could account for part of the variation in bone loss rate and Periotest value. Some influence of time of loading, jaw, and implant diameter on bone loss or Periotest value was formally established. Occlusal wear failed to have any statistical impact on vertical annual bone loss rate or Periotest value. CONCLUSION: This study gave no indication that implants in patients with occlusal wear have an increased bone loss rate or Periotest value.

Adult↗
PubMed2001

Obsessive compulsive disorder: a case report.

A general dentist often will find the most challenging aspect of dentistry is patient management. In the controlled environment of a dental school, many students are not exposed to certain patient populations. It is likely that their first experience with particular patient pools will be in private practice. One such group of patients is those suffering from Obsessive Compulsive Disorder (OCD). This article reviews the clinical signs and symptoms of this group of patients.

Adult↗
PubMed2002

[Investigation on the relationship of occlusal force to formation of wedge-shaped defects].

OBJECTIVE: To clinically investigate and identify the occlusal force as one of factors relative to formation of wedge-shaped defects. METHODS: 123 subjects, selected from a group of middle-aged and elderly people in an urban area were divided into four groups: control, light, middle and severe group according to the severity of wedge-shaped defects. Cuspid, first and second premolars, and first molar in maxilla were examined for occlusal force by occlusometer, and the peak value of occlusal contact strain on every maxillary tooth was studied by photocclusion. RESULTS: Significant reduce of occlusive force in the defected teeth was found than that of in the control teeth. The occlusal contact strain of first premolars with defects by photocclusion was statistically increased. The relative occlusal contact strain of first premolars and first molar of defects was higher than that of their proximate teeth. CONCLUSION: Occlusal force could have relation to the formation of wedge-shaped defects.

Adult↗
PubMed2002

Evaluation of toothbrush-induced dentin substrate wear using an in vitro ridged-configuration model.

PURPOSE: To measure the dentin substrate wear associated with toothbrush use utilizing an in vitro specimen modeled to simulate the prominences of teeth and thus more closely simulate the clinical situation. MATERIALS AND METHODS: Dentin sections were cast within resin to produce a specimen configuration with three half-round ridges: a central ridge containing dentin (3 x 10 mm) and two similar ridges on each side of the central ridge. The specimens were brushed for the equivalent of the amount of time an individual tooth surface would be brushed in a 2-year period using a machine that simulated typical movement of a toothbrush across the specimen under controlled load and fluid conditions. Brushing was done with either a manual toothbrush (MTB), the Braun Oral-B 3D Excel (PTB1) or the Sonicare Elite (PTB2) and various loads. Dentin substrate loss was measured by profilometry. RESULTS: Using this ridged specimen configuration, the results showed that the MTB and PTB1 had the highest amount of dentin substrate wear in both average depth and average maximum depth measurements. Increased toothbrush force from 90 g to 150 g increased the dentin substrate wear of both PTBs. PTB1 produced approximately 4-5 times greater average wear than PTB2 (P < 0.05).

Algorithms↗
PubMed2003

Predictors of bruxism, other oral parafunctions, and tooth wear over a 20-year follow-up period.

AIMS: To analyze predictors of bruxism, other oral parafunctions, and tooth wear in a group of subjects who had been examined 20 years earlier. METHODS: Originally, 402 randomly selected 7-, 11-, and 15-year-old subjects were examined clinically and by means of a questionnaire. Twenty years after the first examination, 94% of the original group could be traced, and 320 (85%) completed and returned the questionnaire. Of the oldest group, 100 (81%) also underwent a clinical examination focusing on occlusal factors and function and dysfunction of the masticatory system. For analyses of predictors of some oral parafunctions and tooth wear registered at the 20-year follow-up, logistic regression was used with recordings at the first examination as independent variables. RESULTS: Subjective reports in childhood of bruxism (defined as tooth clenching during daytime and/or tooth grinding at night), clenching only, grinding at night only, nail biting, and/or other parafunctions were predictors of the same oral parafunctions 20 years later. There were different predictors of the 2 components of bruxism, daytime tooth clenching and tooth grinding at night. Postnormal occlusion (Angle Class II malocclusion) and tooth wear in childhood predicted increased tooth wear in adulthood. Subjects with nonworking-side interference had less anterior tooth wear than those without such interference. CONCLUSION: Oral parafunctions in childhood may be a persistent trait in many subjects. Postnormal occlusion and tooth wear in childhood predicted increased anterior tooth wear 20 years later, whereas nonworking-side interference reduced the risk for such wear in 35-year-old subjects.

Adolescent↗
PubMed2002

Impact of the sonicare toothbrush on plaque and gingivitis.

The sonicare toothbrush has been shown to be 40% more effective in removing plaque than a manual toothbrush, 82% better in removing plaque from interproximal areas, and to reverse gingivitis. In vitro studies have examined the ability of the sonicare toothbrush to remove plaque bacteria beyond the reach of the bristles. The sonicare toothbrush has also been shown to produce significantly less dentin wear in vitro than another leading power toothbrush. This article reviews both in vivo and in vitro studies that illustrate the efficacy of the sonicare toothbrush in improving oral health.

Adult↗