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At least 1,513 records · Page 84Linked to original sources
PubMed2000

Historical survey of laser dentistry.

Soon after lasers were invented, investigators began to examine the effects of different wavelengths of laser energy on oral tissues. From soft tissue surgery to restorative dentistry, from reshaping healthy gingiva to treating pathologic conditions, from routine procedures to experimental applications, researchers and clinicians have defined the limitations and shown the advantages of laser use in dentistry.

Dental Equipment↗
PubMed2000

An initial evaluation of the Iowa Dental Surgical Simulator.

The University of Iowa colleges of dentistry and engineering are collaborating to build an effective but low-cost surgical simulator that uses force feedback to teach and assess the tactile skills of dentistry. A prototype simulator was built, and a formative evaluation examined the realism of the haptics and identified directions for future work. Using a cross-over design, twelve experienced practitioners probed two virtual teeth using two instruments attached to the force feedback device. The session was videotaped, the forces recorded, and a standardized questionnaire completed. Two analyses were conducted: an ANOVA examined practitioners' questionnaire responses, and a t-test analyzed the probing forces. Significant tooth order by instrument order interaction and instrument effects were found. Practitioners were generally satisfied. They preferred a standard joystick to an explorer, felt that two-dimensional graphics were sufficient, and emphasized that the existing vibration be eliminated. Random placement of caries should help teach generalized skills.

Analysis of Variance↗
PubMedDate not supplied

Progress and decline.

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Clinical Competence↗
PubMedDate not supplied

Cumulative assessment of factors leading to restorative decisions in an educational environment. A graphical demonstration using an in vitro case.

Even though accuracy and inter-examiner variation assessments of borderline restorative items have been previously reported, no attempt has been made to replicate the effect of cumulative, sequential diagnostic and treatment planning decisions. This study assesses the cumulative effect of factors indicating restorative needs by evaluating how readily tooth restoration was proposed on the basis of restoration quality and presence of caries (compared to gold standards). Ninety-one senior dental students in Mexico City (79% female; mean age 22.8 years) assembled in 19 teams of five students each. They sequentially evaluated 56 restored and unrestored posterior teeth in an in vitro model. Each student examined the set, removed those teeth needing restorative intervention and returned the remaining set for examination by a second student. When the second assessment was completed, the remaining teeth were turned over to the third teammate and so on. Teeth were subsequently assessed for restoration quality and enamel and dentinal caries. When a tooth showed a carious lesion, a dentinal lesion or a defective restoration, the likelihood of it being selected for restorative treatment increased. When more than one feature was present, the chances of the tooth being selected more frequently and earlier increased, accordingly. The specificity of restorative treatment needs was not excellent. A strong graphical association between the presence of caries and/or defects in restorations with proposed restorative treatment was demonstrated using a non-quantitative research model. The more abundant these features were, the higher the probability appeared for a tooth to fit the clinical picture suitable for restorative intervention.

Adult↗
PubMed2000

Discoveries of importance in restorative dentistry over the past 40 years.

The advancements in restorative dentistry over the past several decades have been impressive. It is now possible to prevent dental caries on a predictable basis. If prevention is not carried out in early life and teeth are lost, it is now possible to restore mutilated or missing teeth with high efficiency and effectiveness. The future for restorative dentistry is extremely bright and has never been better in its history.

Dental Materials↗
PubMed2000

Student and faculty perceptions in the assessment of amalgam restorations.

The purpose of this in-vitro study was to compare the assessment of amalgam restorations made by dental students and faculty members. Extracted human teeth which contained old amalgam restorations were mounted in dental stone and labeled one through 25. All evaluators were instructed the restorations were those of a 35-year-old patient with no clinical symptoms. The restorations were examined by 57 dental students and 10 dental instructors. Each examiner was asked to accept the restorations or replace the restorations with accompanying reason(s). Approximately one year after the first assessment, the blocks were randomly relabeled and all examiners reevaluated the amalgam restorations. the mean number of replacements, reasons for replacement, and kappa values were calculated for this study. A total of 1,675 decisions to replace or not to replace were obtained. There were a total of 2,784 reasons for replacement made by the students and 410 total decisions made by the dental faculty at the initial and final assessments. The study showed that dental faculty were more conservative in their treatment decisions. Also, the intraexaminer scores (kappa values) showed lower reproducibility among the dental students.

Decision Making↗
PubMed1998

[Contralateral masking effects on cerebral auditory evoked potentials in man: a trial in working practice application in conservative dentistry].

In hearing the masking consists to disturb the information perception which means its reception, codeage and transmission are distorted in the auditory system. The electrophysiological technique by auditory evoked potentials on brain has permitted to study the noise effects with homolateral and contralateral masking method in monaural hearing. The results show that the noise distorts the maximal amplitude of the evoked response and lengthens latency. They do to appear a better resistance of a left ear preference and a superiority of right hemisphere corresponding: they characterize by an important development of auditory evoked potentials with or without masking. As a result for men who are exposed to excessive noise like teachers and students in Odontology, we suggest an inequality protection of auditory system considering the both ear sensibility difference.

Adult↗
PubMed2001

Ethics.

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Dentistry, Operative↗
PubMedDate not supplied

The State of an Art.

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Curriculum↗