Two irreversible hydrocolloid alternative impression materials exhibited minimal dimensional changes with immediate and delayed pouring, differing statistically from a traditional impression material but still meeting established clinical standards.
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This literature review confirms that long-term use of phenytoin causes gingival hyperplasia, as does the use of valproate, carbamazepine and phenobarbital. Patients taking carbamazepine or phenytoin had alveolar bone loss. However, the effects of newer-generation antiepileptic drugs on oral health have not yet been studied.
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Length of exposure to bisphosphonate therapy seems to be an important risk factor for bisphosphonate-related osteonecrosis of the jaw. Dental clinicians should encourage patients with cancer to use oral and dental prevention strategies to reduce the risk of osteonecrosis during bisphosphonate therapy.
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Interviews with Montreal-based Chinese low-income economic immigrants revealed that financial, language and cultural barriers limited their access to dental health care in Canada. Understanding these factors could help dental health care providers supply culturally competent services and help policy makers devise culturally appropriate dental health care programs.
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Four curing lights were tested to assess the risk of ocular damage to dental practitioners. Effective UV irradiance was minimal, and maximum permissible daily exposure limits exceeded 8 hours.
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Potential sources of contamination of the plates used for digital intraoral radiography were investigated. Recommendations to reduce cross-contamination include rigorous disinfection between uses and placement under aseptic conditions.
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Treatment of generalized aggressive periodontitis with full-mouth scaling and root planing (FRP) alone or combined with either metronidazole and amoxicillin or doxycycline provided significant clinical benefits that reduced the need for periodontal surgery. Both antibiotic treatments had additional clinical benefits over those of FRP alone.
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In vitro testing revealed that esthetic stainless steel crowns are capable of resisting typical pediatric occlusal forces over short clinical periods.
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Among 118 patients with osseous (cemento-osseous) dysplasia of the jaw, the condition was usually asymptomatic. Most cases presented as solitary lesions or in association with simple bone cysts or osteomyelitis.
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Quantitative analysis of irradiance and beam homogeneity from 4 curing lights revealed differences between units and changes with increasing distance. These results have implications for the adequacy of curing of deep restorations.
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Zirconia-based posterior fixed dental prostheses were reliable over the medium term (4 years). However, surface alterations of the veneering ceramics could cause subsequent clinical problems.
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In a rabbit model, bioimplants containing bone morphogenetic protein had more rapid initial production of bone for augmentation of the maxillary sinus than other materials tested, including autogenous bone.
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The energy delivered by a light curing unit in a simulated clinical environment was affected by the operator’s technique, the choice of light curing unit and the location of the tooth preparation.
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The translucency of 39 composites representing various shade-and-translucency combinations was measured. In general, “opaque” and “dentin” composites had low translucency, “universal” or “body” composites had intermediate translucency, and “enamel” composites had high translucency.
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The authors evaluated whether disk displacement on magnetic resonance imaging correlated with the presence of clinical signs and symptoms in patients with a clinical disorder of the temporomandibular joint.
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Finite element analysis, a 3-dimensional modelling method, was used to analyze the effects of removing bone around an impacted mandibular third molar and to predict the possibility of iatrogenic fracture.
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Three-quarters of students who cured a simulated Class I restoration with the instruction typically received by third-year dental students delivered less than 10 J/cm
2. After the students received additional instruction about light-curing, the amount of energy delivered increased significantly, with half of the students delivering more than 10 J/cm
2.
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