Dentistry and domestic violence.
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Biomedical subjects
Publications and source records attributed to Paul Coulthard.
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OBJECTIVE: This study assessed the analgesic efficacy of single doses of 4-(nitrooxy)butyl-(2S)-2-(6-methoxy-2-naphthyl) propanoate (AZD3582) in acute postoperative dental pain after the removal of an impacted mandibular third molar (ie, wisdom tooth). METHODS: Two randomized, placebo-controlled, double-blind studies were performed. In a dose-finding study, 242 patients were randomized to AZD3582 375, 750, 1500, or 2250 mg (n = 41, 37, 42, and 41, respectively); naproxen 500 mg (n = 39); or placebo (n = 42). In a comparator study, 282 patients were randomized to AZD3582 500 mg (n = 78) or 750 mg (n = 83), rofecoxib 50 mg (n = 80), or placebo (n = 41). Primary outcomes included time to rescue medication, time to pain relief, and mean pain intensity difference (MPID), as well as safety profile. Pain was rated on a visual analog scale. RESULTS: In the dose-finding study, 52% (126/242) were women; the mean (SD) age was 25.1 (4) years, mean weight was 69.0 kg, and the mean (SD) body mass index (BMI) was 23.7 (3) kg/m2. In the comparator study, 58% (164/282) were women; the mean (SD) age was 27 (6.4) years, mean weight was 71 kg, and mean (SD) BMI was 24.2 (3) kg/m2. In the dose-finding study, the AZD3582 750-, 1500-, and 2250-mg groups were superior to placebo in the primary variables "time to rescue medication (0-8 hours)" (hazard ratios [HRs] [95% CIs], 0.17 [0.07-0.42], P < 0.003; 0.23 [0.11-0.50], P < 0.001; and 0.15 [0.06-0.36], P < 0.001, respectively), "time to meaningful pain relief" (HRs [95% CIs], 3.42 [1.87-6.25], P < 0.003; 2.49 [1.37-4.50], P < 0.003; and 3.07 [1.70-5.55], P < 0.001, respectively), and MPID (analysis of covariance [ANCOVA] least squares mean [LSM] differences [95% CIs], 25.8 [17.3-34.4], P < 0.003; 20.4 [12.1-28.7], P < 0.003; and 29.3 [20.9-37.6], P < 0.001, respectively). AZD3582 and naproxen did not show any statistically significant differences for the 3 primary variables, except that naproxen was superior to the AZD3582 375-mg dose for the variables time to meaningful pain relief (HR difference, 0.48 [95% CI, 0.29-0.78], P < 0.004) and MPID (difference in ANCOVA LSM, -10.2, [95% CI, -18.2 to -2.2], P < 0.012). The median times to meaningful pain relief were 115 minutes for AZD3582 375 mg, 66 minutes for 750 mg, 85 minutes for 1500 mg, 81 minutes for 2250 mg, and 162 minutes for placebo (P = NS, P = 0.003, P < 0.003, and P < 0.001, respectively). The median time to first rescue medication was 144 minutes for placebo, and <50% of the subjects on any of the AZD3582 doses or naproxen took rescue medication within 8 hours after dosing. In the comparator study, AZD3582 750 mg was superior to placebo in "time to rescue medication (0-24 hours)" (HR [95% CI], 0.4 [0.3-0.6], P < 0.001), "time to confirmed perceptible pain relief" (2.1 [1.1-3.8], P = 0.02), and MPID (11.9 [4.2-19.5], P = 0.002). However, inferiority of AZD3582 to rofecoxib for MPID could not be excluded (tolerance limit of 10 mm; P = NS for noninferiority testing). The median times to confirmed perceptible pain relief were 45 minutes for AZD3582 500 mg, 40 minutes for 750 mg, and 37 minutes for rofecoxib. The median times to first rescue medication were 218 minutes for AZD3582 500 mg, 365 minutes for 750 mg, 635 minutes for rofecoxib, and 90 minutes for placebo. Overall, AZD3582 was well tolerated. However, an effect on orthostatic blood pressure could not be excluded because there seemed to be more subjects with dizziness and orthostatic blood pressure reduction who were administered AZD3582 > or =750 mg. The proportions of patients with vertigo and decreased orthostatic blood pressure each group were as follows: AZD3582 500 mg, 6%; AZD3582 750 mg, 12%; rofecoxib, 3%; and placebo, 5%. CONCLUSIONS: AZD3582 750 mg had similar analgesic efficacy as equimolar doses of naproxen, but noninferiority to rofecoxib was not demonstrated.
SCOPE AND PURPOSE: This guidance is intended to promote good clinical practice for the provision in dentistry of conscious sedation that is both safe and effective. It is not a recipe book for sedation and therefore does not include details of drug dosages. The recommendations are applicable to all patients receiving conscious sedation, to facilitate the provision of any type of dental treatment whether it is delivered in a dental practice, a community dental service clinic or a hospital setting. It also covers the provision of conscious sedation for dental treatment provided on a domiciliary basis. Specifically excluded from this guidance, however, are patients who require assisted ventilation, intensive care sedation, premedication for general anaesthesia, postoperative analgesia, sedation in palliative care, night sedation and sedation in the home setting other than for the provision of dental treatment on a domiciliary basis. METHODS: Existing guidelines, relevant systematic reviews, policy documents, legislation or other recommendations were reviewed and appraised for their quality of development, evidence base and applicability to the remit of the guidance under development. To supplement this information, key questions were formulated by the Guidance Development Group and used as the basis for designing systematic literature search strategies to identify further research evidence that may address these questions, including unpublished work where relevant.The following internet sites were searched for guidelines: New Zealand Guidelines Group, Canadian Collaboration on Clinical Practice Guidelines in Dentistry, National Guidelines Clearinghouse, FDI World Dental Federation, National Electronic Library for Health Guideline Finder, and Medline. The Cochrane Library was searched for systematic reviews and Medline, Embase and the Cochrane Library for studies to address key questions. The searches were supplemented by material already known to members of the Guidance Development Group. Titles and abstracts of the identified references were screened for relevance independently by two researchers who were not members of the Guidance Development Group. Disagreement about the inclusion of specific individual references for further consideration was resolved by discussion and if necessary the opinion of a third researcher was sought. Included references were appraised and data was abstracted independently by two researchers using a specifically designed data-abstraction form. This information was then checked for inconsistencies, which were resolved by discussion, and used to construct evidence tables. The evidence tables were presented to the Guidance Development Group to inform their decision-making and their recommendations related to the key question under consideration. Levels of evidence were assigned by two researchers who were not members of the Guidance Development Group. Formulation of each recommendation was achieved by consensus reached through discussion, drawing on the broad range of interest and experience of sedation related to dentistry within the membership of the Guidance Development Group. Consultation and peer review were conducted prior to publication. A draft of the guidance was the subject of discussion at the Dental Sedation Teachers Group annual symposium in April 2004. Subsequently, approximately 100 copies were distributed throughout the UK to a range of professional organisations and individuals who have an interest in dental sedation, and comments were requested. In addition, all dentists in Scotland who recently claimed the National Health Service allowance for treatment with sedation were invited to comment. The consultation draft was also made available on the group's website (www.scottishdental.org/cep). All comments received through this consultation were considered and the guidance was amended accordingly prior to peer review. Further amendments were made in response to feedback from peer reviewers before publication. REVIEW AND UPDATING: The guidance will be reviewed in 2 years' time (2008) and if there have been significant changes it will be updated accordingly. RECOMMENDATIONS: The detailed guidance make 48 recommendations in a range of areas: REFERRAL: Discuss alternative methods of anxiety management with patient and ensure that dental care with sedation meets agreed definition of conscious sedation. ASSESSMENT AND RECORD KEEPING: As part of a thorough assessment, discuss with patient all aspects of their conscious sedation treatment and also provide written instructions. Obtain patient's written consent; maintain comprehensive and contemporaneous patient records. ENVIRONMENT AND FACILITIES: Ensure that environment for sedation is safe and that correct equipment and drugs are provided for each sedation technique used. Ensure that equipment and drugs for dealing with medical emergencies or complications related to sedation are immediately available. TRAINING: Ensure all members of dental team are correctly trained in sedation techniques used, including monitoring of patient during treatment and management of any sedation-related complications. For oral and transmucosal sedation, ensure that sedationist is trained in other titratable techniques and skilled in performing venous cannulation. Ensure that teams giving conscious sedation provide treatment for patient groups they are experienced in managing. CONSCIOUS SEDATION TECHNIQUES: For inhalation sedation, ensure that a titrated dose of nitrous oxide is administered using dedicated purpose-designed equipment. Oral, transmucosal and intravenous sedation require pulse oximetry and blood-pressure monitoring. A titrated dose of midazolam is recommended for intravenous sedation. AFTERCARE: Monitor patients throughout the recovery period until discharge by sedationist into the care of responsible adult escort who has also been given written postoperative instructions. An escort might not be required after nitrous oxide inhalation sedation. RESEARCH RECOMMENDATIONS: A number of recommendations were made regarding the future conduct and reporting of clinical trials. The following areas were highlighted as requiring further high-quality research: Fasting before conscious sedation. Conscious sedation of paediatric dental patients. Dental conscious sedation using combinations of drugs. Dental conscious sedation using continuous infusion. The choice of sedation method for dental patients. Cognitive and behavioural effects of conscious sedation. The interaction of pharmacological and nonpharmacological anxiety management techniques. The complete guidance is available for download at www.scottishdental.org/cep/guidance/dentalsedation.htm.
The purpose of this study was to test whether a handheld magnifier could be used as an accurate instrument to examine the periapical radiographs and measure the marginal bone levels around dental implants system. A radiologic evaluation of marginal bone loss around 11 Astra Tech (Astra Tech AB, Mölndal, Sweden) oral implants was performed. A total of 22-recorded readings of mesial and distal bone loss were performed using a handheld magnifier with a graticule. There were 3 independent examiners who determined radiographic bone assessment. Thevalues of interclass correlation coefficient for the agreement between pairs of examiners showed a relatively high agreement (0.993 for A vs B, 0.995 for B vs C, and 0.995 for A vs C) and the same for intra-examiner reliability result (0.998 for B vs B). These results showed that a handheld magnifier could be used as a simple, reliable, and reproducible method for measuring bone loss around oral implants.
We tested the hypothesis of no difference in implant failures between various dental implant types. We searched for all randomised clinical trials comparing different implant types/systems with a follow up of at least one year on four databases. Screening of eligible trials, quality assessment and data extraction were conducted in duplicate. Thirty-one trials were identified. Twelve trials, reporting results of 512 patients, were included. No significant differences were observed for implant failures. There were minor statistically significant differences for peri-implant bone level changes. Turned surfaces had a 20% reduction in risk of being affected by perimplantitis over a 3-year period.
INTRODUCTION: Autogenous bone graft insertion can effectively enhance the regeneration of the debilitated bone. However, bone graft can be harvested only by a second surgery, which is inconvenient for the patient and raises the possibility of many complications. AIMS: The effect of an alloplastic bone-replacing material, beta-tricalcium phosphate and that of the autogenous bone graft were compared. The studies were performed on patients deriving from four European centers. METHODS: In 20 edentulous patients, the alveolar ridge was extremely atrophied, so fixation of the denture was impossible. The base of the maxillary sinus was surgically elevated bilaterally by insertion of Cerasorb (beta-tricalcium phosphate) (experimental side) and by autogenous bone graft (control side). After surgery the recovery was controlled clinically and radiologically. After 6 months bone cylinders were excised from the grafted areas and implants were inserted into their place. 80 bone samples were embedded into resin, and the osteointegration of the grafts was studied histologically. The new bone density was measured by histomorphometry. RESULTS: Beta-tricalcium phosphate proved to be an effective bone replacing material with osteoconductivity, and was capable of gradual disintegration, providing space to the regenerating bone. The new bone density was similar on both sides without significant differences. CONCLUSIONS: After 6 months, insertion of the beta-tricalcium phosphate graft resulted in formation of stable bony bed apt to anchor of dental implants.
BACKGROUND: Topical 2-octylcyanoacrylate tissue adhesive is an alternative to traditional devices for closing short surgical incisions. METHODS: An open-label, randomized study compared a new high-viscosity formulation of 2-octylcyanoacrylate with commercially available devices, including low-viscosity 2-octylcyanoacrylate, for epidermal closure of incisions > or = 4 cm requiring subcutaneous and/or deep-dermal suturing. RESULTS: Of patients with 1 to 3 wounds, 106 were treated with high-viscosity 2-octylcyanoacrylate and 103 with commercially available devices. The day-10 rates of healing by wound were 96% and 97% for study versus control treatment and 97% and 95% for new and old 2-octylcyanoacrylate formulations versus other controls, respectively. Day-10 infection rates by wound were 4 of 145 versus 7 of 131 for study versus control treatment and 6 of 207 and 5 of 69 for new and old 2-octylcyanoacrylate versus other controls, respectively. CONCLUSIONS: The new tissue adhesive formulation provides epidermal wound closure equivalent to commercially available devices with a trend to decreased incidence of wound infection.
Gait analysis in the adjuvant-induced arthritic rat model of chronic pain was used to examine the role of GABA(A) receptors in the development of pain. Drug solutions were administered continuously at 5+/-0.75 microl/h for 14 days via Alzet osmotic pumps (2ML2) placed under the skin of the back. The GABA(A) receptor agonist, muscimol, produces a dose-dependent reversal of the gait deficits seen in arthritic rats without reducing the tibiotarsal joints inflammatory edema or the histological picture of joint erosion and inflammation. The higher infusion rate for muscimol, 20 microg/h, caused the gait for the arthritic rats to be indistinguishable from that of normal non-arthritic rats. In normal, non-arthritic rats, muscimol did not show any effect on gait. The GABA(A) receptor antagonist bicuculline showed small but significant exacerbation of stride length (P < 0.05) single and double stance time (P < 0.05) and swing time deficits (P < 0.05) in the arthritic rats, but no changes in measures of gait in the normal control rat. The results suggest that the development of arthritic pain is increased in the absence of GABA(A) receptor tone and that increasing GABA(A) receptor tone can reduce arthritic pain but does not affect the disease process.
We reviewed the literature on the efficacy of enamel matrix derivative (EMD) in comparison with open flap debridement, guided tissue regeneration (GTR), and bone grafting for the treatment of intrabony defects. We searched four major electronic databases for randomized controlled trials (RCTs) with at least one year of follow-up. Several journals were handsearched with no language restrictions. Outcome measures were: tooth loss, changes in probing attachment levels (PAL), pocket depths (PPD), gingival recessions (REC), marginal bone levels on intraoral radiographs, and postoperative infections. Screening of eligible RCTs, assessment of the methodological quality, and data extraction were conducted in duplicate. No difference in tooth loss was observed. A meta-analysis (eight trials) showed that EMD-treated sites displayed statistically significant PAL improvements (mean difference 1.3 mm) and PPD reduction (1 mm) when compared to flap surgery. When EMD was compared to GTR (six trials), GTR showed a statistically significant reduction of PPD (0.6 mm) and increase of REC (0.5 mm). No difference in postoperative infections was observed. No trials compared EMD with bone grafts alone. EMD is able to significantly improve PAL levels and PPD reduction when compared to flap surgery; however, there is no evidence that more teeth could be saved. There was no evidence of important differences between EMD and GTR.
The aim of this study was to investigate whether gait changes occurring during the development of carrageenan induced rodent paw inflammation could be measured to provide an objective marker of persistent pain. The objectives were to measure hind limb tibiotarsal joint diameter as an indication of inflammatory oedema and to analyse gait during the development of the carrageenan induced persistent pain. Rear paw intraplantar injection of 6 mg (150 microl) lambda-carrageenan resulted in significant swelling of rear limbs at 90 min (P=0.002). Analysis of gait, using video recordings of spontaneous animal ambulations demonstrated significant changes in gait over a 90-min period. These were primarily changes in temporal measures of gait and consisted of a reduction in velocity (P=0.005) and stride length (P=0.006) and increase in dual stance time (P=0.009). It is hypothesised that the temporal and spatial changes in gait observed in this model of acute inflammatory hyperalgesia may have been due to avoidance of the normally non-noxious mechanical stimulation induced by walking. It is suggested that gait analysis may be a suitable method for measuring early behavioural change associated with inflammatory hyperalgesia.
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The aim of this systematic review was to investigate the effectiveness of hyperbaric oxygen (HBO) therapy for irradiated patients who require dental implants using data from randomized controlled clinical trials (RCTs). The review was prepared according to Cochrane Collaboration guidelines. The Cochrane Oral Health Group Specialist Register and the Cochrane Controlled Trials Register were searched (Cochrane Library 2002, Issue 2), together with Medline from 1966 or Embase from 1974. Several journals were hand-searched, and fifty-five implant manufacturers were contacted in an attempt to identify ongoing or unpublished studies. The results were that no RCTs comparing HBO with no HBO for implant treatment in irradiated patients were identified. Our principal conclusions are that clinicians ought to be aware and make patients aware of the lack of reliable clinical evidence for or against the clinical effectiveness of HBO therapy in irradiated patients requiring dental implants. There is a need for RCTs to determine the effectiveness of HBO.
OBJECTIVE:To survey the attitudes, knowledge and practice of general dental practitioners (GDPs) with regard to hypertension in dental patients and to assess opinion with regard to the concept of screening. SETTING:General dental practice. SUBJECTS AND METHODS:GDPs via a postal survey. To achieve an acceptable level of accuracy, at least 196 responses were required. RESULTS:Out of 300 questionnaires, 207 were returned (69% response rate). Most practitioners (98%) had received training in the measurement of blood pressure. Only 4.8% measured blood pressure routinely and this figure rose to 9.2% in patients with a known history of hypertension. Only 27.1% felt that the involvement of dentists in screening for hypertension was a good idea but 85.3% thought that education of practitioners about hypertension would be valuable. CONCLUSION:Most GDPs thought that education of practitioners about hypertension was a good idea. They did not, however, want to be involved with screening of patients for hypertension.
The aim of this study was to investigate objective characterisation of gait as a marker of the chronic pain of adjuvant arthritis (AA). Video recorded images of spontaneous rat ambulations were analysed to quantify various temporal and spatial parameters and compare these between the AA and control groups. Changes were also recorded after the administration of a single dose of buprenorphine (15 ?g). Individual temporal parameters were significantly reduced (velocity (P=0.05), stride length (P=0.007), single stance time (P<0.001), swing time (P=0.001)), or increased (dual stance time (P<0.001)) at 10 days in the AA group compared to control. The rear paws showed reduced ground contact and the fore paws an increase in proximal pad and decrease in digit area, although these changes were not all statistically significant. Some of the gait parameters showed significant reversal following administration of buprenorphine (velocity (P<0.001) and stride length (P<0.001) were increased and single stance time (P=0.014) reduced). It is proposed that changes in gait are a marker of AA chronic pain in this model. These behavioural changes were significant at a very early stage (day 10), before the development of physical deformities and increase in paw volume and might permit an earlier detection of pain than other models.
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PURPOSE: This article evaluates the reporting of randomized controlled trials (RCT) in prosthodontics, excluding endosseous implant-based prosthetics. MATERIALS AND METHODS: Reports of RCTs published to the end of 2000 in any language were identified using a multilayered search strategy. The Cochrane Oral Health Group specialized register, Medline, and personal libraries were searched. Three researchers appraised the articles independently using guidelines following Jadad and CONSORT, complemented with an evaluation of the appropriateness of the reported statistics. RESULTS: Ninety-two reports of RCTs were evaluated, covering a wide spectrum of study hypotheses, topics, and issues within various prosthodontic domains. The interrater agreements on appraisal criteria were relatively high, with median kappa values ranging between 0.65 and 0.79. The reports were in general of poor methodologic quality. Randomization and procedures for concealment allocation were not described in 70% of the articles. The methods used to generate the random allocation sequence were not mentioned in 82%. The methods used to implement the random allocation sequence, clarifying whether it was concealed until all interventions were assigned, was not mentioned in 94%. Reporting who generated allocation sequence, who enrolled patients, and who assigned participants to groups was not reported in 7%. Reasons for withdrawals were not given in 23% of the reports. No attempt at blinding was reported in 72%. Statistical analysis was not described in 6% of the papers, while these analyses were assessed as appropriate for 75%, unclear in 12%, and inappropriate in 7%. CONCLUSION: Few RCTs in prosthodontics are reported in accordance with contemporary guidelines for adequate reporting of trials.
PURPOSE: Two different graft materials, beta-tricalcium phosphate (Cerasorb) and autogenous bone, were used in the same patient. The objective was to determine whether donor site morbidity could be avoided by using pure-phase beta-tricalcium phosphate (Cerasorb). MATERIALS AND METHODS: Bilateral sinus grafting was performed on 20 selected patients; Cerasorb was used on the experimental side, and autogenous bone was used on the control side. In each patient, one side was randomly designated the experimental side. In 10 of the 20 patients, the maxilla reconstruction included sinus grafting and onlay bone grafting. Implants were placed 6 months after the procedure. In addition to routine panoramic radiographs, in 10 of the 20 patients, 2- and 3-dimensional computerized tomographic examinations were performed pre- and postoperatively and after implantation. Eighty bone biopsy specimens were taken at the time of implant placement. RESULTS: Histologically and histomorphometrically, there was no significant difference between the experimental and control grafts in terms of the quantity and rate of ossification. For each histologic sample, the total surface area, the surface area that consisted of bone, and the surface area that consisted of graft material were measured in mm2, and bone and graft material were analyzed as percentages of the total. The mean percentage bone areas were 36.47% +/- 6.9% and 38.34% +/- 7.4%, respectively; the difference was not significant (P = .25). DISCUSSION AND CONCLUSION: Comparisons with other studies reveal that beta-tricalcium phosphate (Cerasorb) is a satisfactory graft material, even without autogenous bone.
PURPOSE: To test the null hypothesis that there is no difference in failure rates between various root-formed osseointegrated dental implant systems after 5 years of loading. MATERIALS AND METHODS: A search was conducted for all randomized controlled clinical trials (RCTs) comparing different implant systems with a follow-up of 5 years. The Cochrane Oral Health Group's Trials Register, CENTRAL, MEDLINE, and EMBASE were searched. Several dental journals were also searched by hand. Written contacts were established with authors of the identified RCTs and with more than 55 oral implant manufacturers and personal contacts to identify unpublished RCTs. No language restriction was applied. The last electronic search was conducted on February 1, 2005. Screening of eligible studies, quality assessment, and data extraction were conducted in duplicate. Results were expressed as random effect models using weighted mean differences for continuous outcomes and relative risk for dichotomous outcomes with 95% confidence intervals. RESULTS: Ten RCTs were identified. Four of these RCTs, reporting results from a total of 204 patients, were considered suitable for inclusion. Six different implant types were compared. On a per-patient rather than a per-implant basis, there were no statistically significant differences, with the exception of more marginal bone loss around early loaded Southern implants when compared to early loaded Steri-Oss implants (mean difference -0.35 mm; 95% CI -0.70 to -0.01). However, the difference disappeared in the meta-analysis. DISCUSSION AND CONCLUSIONS: There were no clinical differences among implant systems. However, these findings are based on only 4 RCTs with few participants. More RCTs should be conducted with larger patient samples.