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PubMed1999

Prevalence of emergency events in British dental practice and emergency management skills of British dentists.

Medical emergencies in dental practice are generally perceived as being rare but when an emergency does occur it can be life-threatening. The ability of the dentist to initiate primary management is the key to minimising morbidity and mortality. Accurate data on the prevalence of emergency events, required so that dentists can adequately prepare to deal with emergency situations, is sparse and obsolete. This study aimed to determine the current prevalence of medical emergencies and the perceived emergency management skills of dentists. A questionnaire, distributed to 887 dentists working in general dental practice across five counties of Northern England, produced a response rate of 34%. The most frequently reported emergency was vasovagal syncope (1.9 cases, per dentist per year), followed by hypoglycaemia (0.17), angina (0.17), epileptic fit (0.13), choking (0.09), asthma (0.06), hypertensive crisis (0.023) and anaphylaxis (0.013). Myocardial infarction and cardiac arrest were extremely rare with an incidence of 0.003 and 0.002 cases per dentist per year, respectively. The total prevalence of all emergency events (excluding syncope) was 0.7 cases per dentist per year. Only 20.8% of dentists felt competent to diagnose the cause of a collapse in the dental surgery. However the majority believed that they would be able to undertake initial treatment of most common emergencies. Despite this more than 50% felt unable to manage a myocardial infarction or anaphylaxis, and 49.7% did not know how to insert an oral airway or undertake an intravenous injection. Future postgraduate training in emergency care for dentists needs to be more accurately targeted to the known prevalence of emergencies and deficiencies in dentists' emergency skills.

Adult↗
PubMed1998

The incentive effects of malpractice liability rules on dental practice behavior.

OBJECTIVES: The impact of malpractice liability rules on dental practice behavior was estimated using data from a 1992 nationwide survey of US general dentists. The study examined the premise that malpractice liability rules can affect quality of care and related resource allocation decisions by dentists, but that market features, such as relatively complete and "non-experience rated" malpractice insurance, are likely to weaken the incentive effects of malpractice liability. METHODS: General practice dentists in the United States were selected randomly, and 3,048 dentists were studied by mail survey. Secondary data on county-level characteristics were used to measure market area factors. Quality-of-care measures were derived from the survey about self-reported practice policies and behavior and participation in continuing education. Legal measures were assembled from state statutes and appellate court decisions. Ordinary least squares was used to assess the relation between legal variables and dependent variables of quality of care, continuing education, and the rate of dental output. RESULTS: Hypotheses about the effects of malpractice law on practice quality and participation in continuing education were not supported. The relation between pro-dentist law and output was supported. A number of legal provisions related to differences in practice behavior, but often in ways opposite to the expected direction. CONCLUSIONS: The direct effects of specific malpractice liability rules on dentist practice behavior often failed to point in the direction predicted by theory and were economically insignificant. It is possible that relatively complete malpractice liability insurance, coupled with "noisy" liability rules, substantially dulls the deterrent effect of malpractice liability. Other forces, such as the dentist's past malpractice claims experience, were more significant in shaping dentist behavior.

Education, Dental, Continuing↗
PubMed1999

Congruence between self-reported and actually provided prosthodontic services among Swedish dentists.

The purpose of this study, comprising two parts, was to investigate the congruence between answers given by general dentists in questionnaires concerning prosthodontic services and the recorded information on the services actually performed by each dentist. In Part I it is investigated whether questionnaire reports of weekly working hours devoted to prosthodontics can be used as indicators of actual prosthodontic production. Part II deals with the dentists' self-reported numbers of single crowns, fixed partial dentures (FPDs), and removable dentures. These reported services are compared with the services actually provided. Part I: A regression analysis indicates a lacking precision for the individual dentist, indicated by a relatively low explained variance (R2 = 0.20). However, a highly significant association is seen between the two production measures (P = 0.000). Part II: The congruence between stated and actually provided services is higher for single crowns and removable dentures than for FPDs. Bivariate regression models are statistically significant for all three services. In Part II, the reported weekly working hours used for prosthodontics covaries significantly with prosthodontic production, but the association is not as strong as in Part I. Although the precision in both Part I and Part II is low for the individual dentist, the questionnaire measure is found to be useful as an indicator in a population of dentists. It is concluded that the questionnaire data can be used as reasonably valid expressions of prosthodontic activity in population-oriented analyses among general dentists.

Crowns↗
PubMed2006

Longitudinal comparison of factors influencing choice of dental treatment by private general practitioners.

BACKGROUND: Service rate variations and appropriateness of care issues have focused attention on factors that influence treatment decisions. The aims of this study were to examine what factors dentists consider in choosing alternative treatments, the stability of these factors over time and whether stability of treatment choice was related to age of dentist. METHODS: Baseline data were collected by mailed self-complete questionnaires from a random sample of Australian dentists (response rate = 60.3 per cent, n = 345 private general practitioners provided service data from a typical day) in 1997-1998 and follow-up data were collected in 2004 (response rate = 76.8 per cent, n = 177 matched longitudinal cases). RESULTS: The most frequent factors considered important across six alternative treatment pair choice scenarios were caries rate for 'exam v. x-ray', age of patient for 'preventive v. restorative intervention', cost of treatment for 'crown v. build-up', 'root canal v. extraction' and 'bridge v. denture', and calculus for 'prophylaxis v. scaling'. The only differences over time were (t-test, P < 0.05): higher proportions of responses in the mouth status group at follow-up for 'exam v. x-ray'; higher proportions of responses in the visit history group at follow-up for 'preventive v. restorative intervention'; a lower proportion of responses in the caries group at follow-up for 'crown v. build-up'; and a higher proportion of responses in the treatment constraints group at follow-up for 'prophylaxis v. scaling'. CONCLUSIONS: While a wide range of responses were offered as factors influencing the choice of alternative treatments, cost of treatment was a major consideration in situations where significantly cheaper alternatives existed, while patient preference was commonly included as a secondary consideration across a wide range of treatment choice scenarios. The treatment choice responses showed a high degree of stability over time across all age groups of dentists, suggesting that if routines are developed these are established before or soon after graduation as a dentist.

Adult↗
PubMed2005

Removal, replacement and placement of amalgam restorations by Ontario dentists in 2002.

AIM: To determine the patterns of removal, replacement and placement of amalgam restorations by Ontario dentists. METHODS: A structured self-administered postal survey was sent to dentists randomly selected from the list of all dentists licensed to practise dentistry in Ontario. The questionnaire sought information on the numbers of 1-, 2-, 3- and > or = 4-surfaced amalgam restorations and core amalgam build-ups that each dentist removed, replaced and placed during a 7-day period. RESULTS: A total of 878 (44%) of 1,994 dentists responded to the survey. Most dentists (82%) who returned completed questionnaires (n = 837) had removed, replaced or placed at least one amalgam restoration during the 7-day period. Most respondents (90%) were general practitioners; respondents practised for a mean of 45.7 weeks each year and had practised for a mean of 20.1 years. On average, each dentist removed 8.91 (standard deviation [SD] 17.32) amalgam restorations during the 7-day period. However, the mean number of new amalgam restorations placed was just 6.64 (SD 18.88): 2.99 (SD 8.74) new restorations in previously unrestored teeth and 3.65 (SD 11.40) replacements of amalgam restorations removed from previously restored teeth. For the year 2002, it was estimated that the 6,915 dentists registered to practise in Ontario had removed 2,855,178 (95% confidence interval [CI] 2,484,566-3,225,790) amalgam restorations. Overall, the dentists placed 2,112,800 (95% CI 1,682,307-2,543,292) amalgam restorations; 1,163,665 (95% CI 919,204-1,408,126) to replace amalgams in previously restored teeth and 949,135 (95% CI 763,103-1,135,166) as new amalgam restorations. CONCLUSIONS: Removal of old amalgam restorations by Ontario dentists exceeds current levels of placement and replacement of amalgam restorations.

Analysis of Variance↗
PubMed2004

Dutch dentists' views of informed consent: a replication study.

The aim of this study was to replicate a previous study on informed consent in dental practice, because of the low response-rate of that study. The present study assessed Dutch dentists' knowledge, their attitudes and self-efficacy towards the principle of informed consent, by means of a strongly shortened version of the questionnaire used in the original study. This questionnaire was sent to 384 Dutch dental practitioners; 60.2% of them responded. The results obtained in this study are highly comparable with the results of the original study, thereby increasing the confidence in the outcomes. Results of both studies indicate that dentists still have problems with some aspects of informed consent. Specifically, dentists' fear for legal procedures and the difficulty they have with informing immigrant patients warrants further attention.

Adult↗
PubMed1998

A critical assessment of high-earning orthodontists in the General Dental Services of England and Wales (1990-1991)

Cases from the Dental Practice Board's 2 per cent random sample of completed cases which had been treated by orthodontic practitioners with high gross earnings, were compared to all the cases within the sample from other practitioners. They were assessed using the PAR index and IOTN. High earning orthodontists treated slightly more cases with lower objective need for treatment, but treated no more cases 'Unnecessarily' than other practitioners. They used more fixed appliances, and had marginally better levels of residual need for treatment at finish, although this was at least partially explained by lower levels at start. Generally, their standards were not substantially different to other practitioners. Appliance type had a marked effect on outcome, as did levels of malocclusion and need for treatment at start. Both groups of practitioners performed similarly (better) with dual arch fixed appliances: however, overall standards could only be described as mediocre. There is no justification to single out high earning orthodontists for special scrutiny. However, it may be beneficial if the system of remuneration in the General Dental Services could be modified to give more positive incentive to quality, rather than simply quantity of treatments.

Analysis of Variance↗
PubMed2000

[Professional profile of the established oromaxillofacial surgeon].

To qualify for further specialist training as a maxillofacial surgeon, a licence to practice in general medicine as well as a licence to practice in dentistry must be obtained beforehand. In addition to the 4-year course to qualify, maxillofacial surgeons can gain the additional qualification in the field of "plastic surgery" in a further course lasting 3 years. By the end of 1998, there were 698 maxillofacial surgeons in private practices in Germany in comparison to 322 hospital-employed maxillofacial surgeons. Of the work done by maxillofacial surgeons (in private practices), 28% is in contracted hospitals; this percentage is relatively high in comparison to other disciplines in which private specialists use contracted hospitals. It is impossible these days for an individual specialist to completely cover all areas of maxillofacial surgery. In our field, joint practices with an internal specialization will increase the spectrum and quality of treatment in the future and will counteract competition from hospital-employed specialists now that day-case surgery has been introduced in these hospitals. Further training by the individual will remain an indispensable necessity as well as personal involvement by every maxillofacial surgeon in the postgraduate medical training of doctors and dentists. This can only be achieved if the economic situation of specialists is maintained in health-politics.

Curriculum↗
PubMed2003

A survey of sodium hypochlorite use by general dental practitioners and endodontists in Australia.

BACKGROUND: Sodium hypochlorite is used commonly as an endodontic irrigant, but there are no published reports that provide details of its use. This survey sought to determine the percentage of Australian dentists who practiced endodontics, whether they used sodium hypochlorite for irrigation, and the manner of dilution, storage and dispensing sodium hypochlorite used by both dentists and endodontists. METHODS: All Australian endodontists and a stratified random sample of 200 general dentists in Australia were surveyed to address the issues identified above. RESULTS: Almost 98 per cent of dentists surveyed performed endodontic treatment. Among endodontists, nearly 94 per cent used sodium hypochlorite for irrigation compared with just under 75 per cent of general dentists. Sodium hypochlorite use by general dentists was more common in Victoria and South Australia than in other States. An infant sanitizer (Milton or Johnson's Antibacterial Solution) was used by just over 92 per cent of general practitioners and by more than 67 per cent of endodontists. All other respondents used domestic bleach. One hundred and sixty four of the respondents (80 per cent of endodontists and over 90 per cent of general dentists) used a 1 per cent w/v solution. Ten practitioners used a 4 per cent w/v solution, five used a 2 per cent w/v solution and four used a 1.5 per cent w/v solution. Eighty per cent of the practitioners who diluted their sodium hypochlorite before use, used demineralized water for this purpose. The remainder used tap water. Only four practitioners stored sodium hypochlorite in a manner which risked light exposure and loss of available chlorine content. CONCLUSIONS: Sodium hypochlorite is commonly used as an endodontic irrigant and Australian dentists generally stored the material correctly.

Australia↗
PubMed1997

National survey of endodontists and selected patient samples: infectious diseases and attitudes toward infection control.

A survey was conducted of 591 patients from endodontic practices located in six large municipalities in the United States. A comparison was made between the self-reported incidence of transmissible diseases from patients medical histories to national statistics for the incidence of hepatitis B, herpes, tuberculosis, and HIV/AIDS. A national survey of 422 endodontists was also conducted. This survey was used to determine the beliefs and attitudes of practicing endodontists toward infection control techniques and infectious diseases. Compared with previous surveys, a trend toward increasing use of the hepatitis B vaccine, gloves, and greater acceptance of medically compromised patients was found.

Attitude of Health Personnel↗
PubMed2000

Use of rubber dam and irrigant selection in UK general dental practice.

AIM: To evaluate factors which influence rubber dam use and irrigant selection in UK National Health Service (NHS) endodontics. METHODOLOGY: A postal survey was conducted amongst two age cohorts of dentists, representing all of the 1970-73 (older) and 1990-93 (younger) graduates of two northern English dental schools (n = 643). Key and supplementary questions were posed on levels of rubber dam use, irrigant selection, and factors influencing practice in NHS endodontics. After manual checking, validated (dual) entry of responses was made to a flat ASCII data file before analysis with SPSS software. The threshold for statistical significance was set at the 95% probability level. RESULTS: Eighty-five per cent of the valid sample responded to the questionnaire. Regardless of age and qualifying school, less than one-fifth of dentists always or frequently used rubber dam, whilst 60% never used it. Qualifying school had a significant influence on rubber dam use, whilst age had a variable influence. Major disincentives to the use of rubber dam included the perception that patients do not like it, that the NHS fee was inadequate to justify its use, that it took too long to apply, and that dentists had received inadequate training. Frequent users of rubber dam were significantly less likely to cite these disincentives than nonusers. Overall, local anaesthetic solution was the most common endodontic irrigant. Irrigant choice was strongly linked to rubber dam use, and to graduation cohort. Seventy-one per cent of rubber dam users irrigated with sodium hypochlorite, compared with only 38% of nonusers. This pattern was reversed for local anaesthetic irrigation. Younger graduates were significantly more likely to irrigate with local anaesthetic solution than their older counterparts, and the younger graduates of one school showed a highly significant increase in the use of chlorhexidine. CONCLUSIONS: 1) The majority of UK Health Service dentists never use rubber dam isolation in endodontic treatment. 2) Qualifying school has a significant impact on rubber dam use, and irrigant selection. 3) Use of rubber dam has a significant association with irrigant choice in endodontics.

Age Factors↗
PubMed1999

[Test your decision making skills. When should endodontic treatment be redone?].

Research has shown wide variations in dentists' clinical attitude towards root canal treated teeth. Simulated cases are used as tools in the investigation of practitioners' clinical behavior and decision making. We therefore used simulated cases (clinical histories and radiographs) of 14 endodontically treated teeth to: (1) determine the predominant proposed treatment strategy for each case, (2) evaluate the consensus, if any, among practitioners, (3) identify pathology and dentist factors influencing the treatment choice.

Adult↗
PubMedDate not supplied

Concentration of formocresol used by pediatric dentists in primary tooth pulpotomy.

Diluted formocresol is the most widely recommended primary tooth pulpotomy medicament, but it is not commercially available. This investigation surveyed practicing pediatric dentists about the concentration of formocresol that they use to perform pulpotomies and, if they use diluted formocresol, where they obtain it. Eight-hundred-and-six surveys were sent to a randomly selected sample of practicing pediatric dentists, and 422 were returned for a 52% response rate. Eighty-four percent of the respondents use formocresol for their primary tooth pulpotomies. Of those, 69% use full strength, 27% use diluted and 4% don't know. Sources of diluted formocresol for those who use the diluted form include: 34% who buy it that way, 58% who dilute it themselves and 8% who have the pharmacy dilute it. The majority of pediatric dentists who use formocresol for primary tooth pulpotomies use a full strength formulation.

Chemistry, Pharmaceutical↗
PubMed1996

Do dentists refer orthodontic patients inappropriately?

One concern to both providers and consumers of orthodontic treatment is the length of new patient consultation waiting lists. A possible reason for the excessive length of these lists could be unnecessary referral of patients. This research project aimed to identify whether inappropriate referrals for new patient orthodontic consultations were a significant problem. The study was carried out in two FHSA areas in the north of England in two stages. The first part of the study involved an evaluation of GDP referral patterns to orthodontic secondary care providers. In the second part, information on the patients referred by the dentists was collected. We concluded that there was a marked variation in referral rates between the dentists and many patients were referred unnecessarily. Importantly, there was no association between dentists' referral rate and the number of inappropriate referrals made. It appears that referral guidelines for orthodontic treatment are necessary and they should be directed at all general dental practitioners.

Adolescent↗
PubMedDate not supplied

Dental therapeutic practice patterns in the U.S. II. Analgesics, corticosteroids, and antibiotics.

This article examines the prescribing practices for peripherally acting and centrally acting analgesics, corticosteroids, and antibiotics following third molar extraction. A nationwide survey involving the prescribing patterns of a random national sample of 850 practicing oral surgeons was performed in 2004. Ibuprofen was the peripherally acting analgesic respondents used most frequently in the previous month, selected by 73.5% of the respondents. The ibuprofen dose prescribed most frequently was 800 mg, followed by doses of 600 mg and 400 mg. The centrally acting analgesic prescribed most frequently was the combination formulation of hydrocodone with acetaminophen, selected by 64.0% of the respondents. Recommendations for oral analgesics to manage postoperative pain relied on the peripherally acting analgesic ibuprofen or the centrally acting analgesic combination formulation hydrocodone with acetaminophen. Routine instructions to use centrally acting analgesics "as needed for pain" suggest that centrally acting analgesics are offered to manage pain that postoperative peripherally acting analgesics and intraoperative long-acting local anesthetics do not control adequately. The frequency with which oral and maxillofacial surgeons administered antibiotics and corticosteroids varied widely based on perceived patient need and dentist expectations.

Acetaminophen↗
PubMed2001

Evaluation of computer aided learning in developing clinical decision-making skills.

AIM: The aim of this study was to determine whether an educational intervention delivered by a computer aided learning package improved the sensitivity and specificity of dentists' restorative treatment decisions. METHOD: The study was a randomised controlled study using a Solomon three-group design. Ninety-five dentists were randomly allocated to the three study groups. One group of dentists read the radiographs pre and post an educational intervention, a second group read the radiographs once, after the intervention, and a third group read the radiographs twice, but received no intervention. On each occasion the dentists read 24 surfaces on each of 15 radiographs and made 360 decisions on how certain they were about restoring the tooth surface. Comparisons of mean sensitivity, specificity and areas under ROC curves were made within and between the study groups. Kappa values were used to assess changes in the level of agreement between dentists. RESULTS: There were no significant changes in sensitivity, specificity or area under ROC curves caused by the intervention. There was no evidence that the level of agreement between the dentists improved after the intervention. CONCLUSION: A computer aided learning package had no effect on dentists' treatment decision-making behaviour.

Computer-Assisted Instruction↗