European Journal of Prosthodontics and Restorative Dentistry

This report provides descriptive information on the Dental Emergency Clinic at the Royal London Dental Hospital. General information was recorded over 6 months (January-July 2001) regarding total number of patients presenting for treatment, number of patients turned away, sex, age, and ethnic origin of the patient. Demographic information was recorded as well as reason for attendance source of referral and treatment carried out. This data was statistically analysed. Between January and July 2001 6299 patients presented to the Royal London Dental Hospital for treatment on the Dental Emergency Clinic. 73% of patients were seen on the Dental Emergency Clinic, whilst 27% were turned away. The mean daily attendance on the clinic was 31 patients. The majority of patients who attended this clinic were white (English, Scottish and Welsh, 39.1%). The next largest ethnic group were Bangladeshi (8.2%). The highest rate of attendance was in the 20-39 year old age band. The majority of patients attended from the surrounding health authority region (East London and City). The majority of patients attended without referral (78.9%), nearly a quarter were referred by their general dental practitioner (21%). Dental pain was the main reason for attendance (73%). 4054 patients were seen and treated with 4325 items of treatment carried out. There was an 8.4% increase in items of treatment between January-March 2001 and May-July 2001. April was excluded to avoid bias due to re-organisation of the clinic. This increase did not show statistical significance (p > 0.05). Most of the patients attending the Dental Emergency Clinic are aged between 20 to 39 years and from the surrounding health authority region. The majority of the patients are from the indigenous population, even though the clinic is situated in a culturally diverse part of London. Since April 2001 there was a reorganisation of the Dental Emergency Clinic. Although the mean number of patients attending the clinic did not increase, the number of items of treatment increased by 8.4%. This reflects the trend of increase in items of treatment being provided for the patients on the day of presentation.

M Sayers

H Rowland

S Djemal

European journal of prosthodontics and restorative dentistry

Experiences in a dental emergency clinic.

牙科急诊诊所的体验。

Challenges in the treatment of our older dentate patients are arising more frequently, and novel solutions may be required to overcome them. This case report describes the treatment given to an elderly dentate female patient, whose lax peri-oral musculature was preventing a satisfactory oral seal from being achieved. This resulted in constant "drooling" and much social disability in an otherwise fit and gregarious lady. A simple removable appliance was provided to increase support to the tissues at the angles of the mouth. An immediate relief of the salivary leakage was achieved and maintained. Simple solutions may be available to problems which may cause great distress to our patients reducing the quality of their lives. This solution to the problem of peri-oral leakage, of a normal volume of saliva, may be useful for many other patients with similar problems, following loss of peri-oral muscle tone with age.

Helen L Craddock

Brian R Nattress

Steven C Scupham

The use of a removable appliance to improve oral continence in an elderly dentate patient.

可摘式矫治器在老年有牙患者口腔闭合功能改善中的应用。

There has been some disquiet over the use of mercury containing restorative materials. The most commonly used alternative is composite resin but this has the potential disadvantage associated with wear and marginal leakage, which in turn, has proven to result in secondary caries and sensitivity. To overcome the shortcomings of a directly placed composite restoration, the glass-ionomer/composite open sandwich technique was introduced followed by the subsequent introduction of compomer systems. The aims of this study were to evaluate the wear and clinical performance of a control group of amalgam restorations compared with that of a group of posterior composite resin restorations fillings and a group of compomer/composite open sandwich restorations placed by a single general dental practitioner. The duration of the study was 2 years. One hundred and thirty three (71.4%) patients were successfully recalled and the wear and clinical performance of each restoration after 6, 12 and 24 months was measured, indirectly. There was no statistically significant difference recorded between the groups at 6 months or 1 year (p > 0.05). However, at the end of the 2-year study, there was a significantly lower rate of wear recorded for the control amalgam restorations compared with other two groups (p = 0.033). There was no statistically significant difference in wear recorded between the two groups of tooth-coloured restorations (p > 0.05). With regards to clinical performance of the restorations, occlusal and proximal contacts in each group of restoration remained satisfactory throughout the study.

A Sachdeo

Gordon B Gray

M A Sulieman

Daryll C Jagger

Comparison of wear and clinical performance between amalgam, composite and open sandwich restorations: 2-year results.

银汞合金、复合树脂及开放式三明治修复体的磨损与临床性能比较：2年结果。

Multiple research studies have investigated the use of systemic antibiotics as adjunctive treatments in the management of chronic periodontitis. However, the great heterogeneity of study designs and variable outcomes that have been reported have led to confusion among the profession as to whether or not there is any clinical benefit of using systemic antibiotics. In this review, the potential advantages and disadvantages of using systemic antibiotics are considered together with outcomes from published clinical studies. Few published studies are of adequate quality to be considered in systematic reviews, and the outcomes are very varied. Drawing definitive conclusions is difficult, but given the lack of reliable data available, systemic antibiotics cannot be indicated as adjuncts in the treatment of chronic periodontitis.

Philip M Preshaw

Systemic antibiotics in the management of chronic periodontitis.

慢性牙周炎的全身抗生素治疗。

The aim of this study was to compare in vitro antibacterial activity of MDPB containing bonding system ABF with activities of three Fluoride containing bonding systems (Fuji Bond LC (FBLC), Prime&Bond NT (PBNT), and FluoroBond (FLB). Two bacterial strains were tested: Streptococcus mutans and Lactobacillus acidophilus. The study was performed on Muller Hinton Agar by Agar Well Technique. The bacterial agar was evenly distributed over the surface of petri dishes. Standard wells were punched into the agar. The test materials were placed in the wells of Muller Hinton agar plates, inoculated with Streptococcus mutans NCTC10449 and Lactobacillus acidophilus. The diameters of inhibition zones produced around the materials were measured after 24 h of incubation at 37 +/- 1 degrees C. For statistical analysis, Duncan's multiple range test was used. The primers of bonding agents were highly effective against to Streptococcus mutans. The MDPB containing primer of ABF Bond produced the greatest inhibition zones against to Lactobacillus acidophilus. It was followed by FLB primer. Lactobacillus acidophilus was resistant to FBLC primer and bonding, ABF, PBNT and FLB bonding agents. The results of this study indicated that, incorporation of MDPB in primer of self-etch system increased its antibacterial activity especially against to Lactobacillus acidophilus. However, all bonding systems except for bonding agent of ABF showed some antibacterial activity against to Streptococcus mutans.

F Ozer

N Unlü

S Karakaya

O Ergani

H H Hadimli

Antibacterial activities of MDPB and fluoride in dentin bonding agents.

牙本质粘接剂中MDPB和氟化物的抗菌活性。

This study examined the influence of surface preparation and metal primer on the tensile bond strength between cobalt chromium alloy and composite resin. The bond strength between 168 cobalt chromium alloy dumb-bells with one of three test surfaces (beaded, machined or sandblasted) to composite resin were tested. Half of each group were treated with metal primer. The weakest bond strength was produced by the unprimed machined surface, many specimens failing before testing. The metal primer increased the bond strengths of all groups tested. The greatest bond strengths were achieved with the primed beaded and sandblasted surfaces. Within the limits of the study it has been shown that the surface preparation of the cobalt-chromium alloy did influence tensile bond strengths with composite resin and Metal Primer II increased the tensile bond strengths for all groups tested. The sandblasted surface treated with Metal Primer II is recommended for the bonding of composite resin to cobalt chromium alloy.

David Newsum

Andrzej Juszczyk

Robert K F Clark

David R Radford

An investigation into the effects of metal primer and surface topography on the tensile bond strength between cobalt chromium alloy and composite resin.

金属底漆和表面形貌对钴铬合金与复合树脂拉伸粘结强度影响的探究

The purpose of the present study was to determine an effective surface preparation for the bonding of a gingival shade composite resin to a denture base resin. The flat surfaces of a heat-processed denture base resin were prepared in various ways. A highly filled gingival shade composite resin was applied and polymerized. Shear testing was performed in a universal testing machine, and the maximum fracture load values were determined. The application of chemically activated 4-META resin using the brush-dip technique was an effective surface preparation for the bonding of a gingival shade composite resin to a denture base resin.

H Shimizu

T Kawaguchi

H Mutobe

Y Kiyokuni

K Takahashi

Y Takahashi

Bonding of a gingival shade composite to a denture base resin using a chemically activated 4-meta resin.

使用化学活化4-META树脂将牙龈色复合树脂粘接到义齿基托树脂上的粘接研究。

The aim of this study was to investigate the fatigue life of laser welded joints in a commercially available cast cobalt-chromium alloy. Twenty rod shaped specimens (40 mm x 1.5 mm) were cast and sand blasted. Ten specimens were used as controls and the remaining ten were sectioned and repaired using a pulsed Nd: YAG laser welder. All specimens were subjected to fatigue testing (30N - 2Hz) in a controlled environment. A statistically significant difference in median fatigue life was found between as-cast and laser welded specimens (p < 0.001). Consequently, the technique may not be appropriate for repairing cobalt chromium clasps on removable partial dentures. Scanning electron microscopy indicated the presence of cracks, pores and constriction of the outer surface in the welded specimens despite 70% penetration of the weld.

Nabil Jalal Ahmad Al-Bayaa

Andrzej S Juszczyk

The fatigue life of a cobalt-chromium alloy after laser welding.

激光焊接后钴铬合金的疲劳寿命。

This systematic review sought to quantitatively answer the question as to whether, in tooth cavities of the same size, type of dentition and follow-up period, resin-modified glass-ionomer (GIC) restorations, when compared to conventional GIC restorations, offer a significant caries preventive effect, as measured by the absence of caries lesions at the margin of restorations. Six databases were searched for articles in English, Portuguese or Spanish until 07 May 2009. Four articles were accepted and 22 separate datasets extracted. The difference between both types of material were computed as relative risk (RR) with 95% confidence interval (CI). No meta-analysis was undertaken due to aspects of clinical/methodological heterogeneity. The results of the extracted datasets ranged between RR 0.90 (95% CI 0.81-1.01) and 1.08 (95% CI 0.71-1.63; p > 0.05) indicating no difference in the caries preventive effect between both types of materials. Further high-quality randomized control trials are needed in order to confirm these results.

Steffen Mickenautsch

Martin J Tyas

Veerasamy Yengopal

Luciana B Oliveira

Marcelo Bönecker

Absence of carious lesions at margins of glass-ionomer cement (GIC) and resin-modified GIC restorations: a systematic review.

玻璃离子水门汀和树脂改良玻璃离子水门汀修复体边缘无龋损的系统综述。

The provision of orthodontic anchorage in the adult patient can be compromised due to reduced periodontal support, insufficient number of teeth and limited supra-gingival tooth tissue. Where tooth borne anchorage is unavailable for significant orthodontic movement implants represent a viable alternative. This paper describes the use of dental implants for orthodontic anchorage in a partially dentate patient with a severe unilateral cross-bite where orthognathic surgery was the only other realistic option. The implants were successfully engaged using a composite bridge and a modified quad helix appliance for correction of the malocclusion. Once orthodontics was completed the patient was restored using highly sintered ceramic crowns and bridges. This paper highlights the importance of the multi-disciplinary team and the close liaison between the restorative dentist, orthodontist and technician in treatment planning and provision.

短名	Eur. J. Prosthodont. Restor. Dent.
Journal Impact	1.11
国际分区	DENTISTRY, ORAL SURGERY & MEDICINE(Q3)

ISSN	0965-7452, 2396-8893
h-index	32

出版信息	出版商: Dennis Barber Ltd，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 1992，原创研究文献占比: 87.10%，自引率:0.00%， Gold OA占比: 0.00%

European Journal of Prosthodontics and Restorative Dentistry

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