摘要:

AbstractTo assess the width of the gaps that may occur in resin restorations bonded to dentine, buccal and lingual cavities were prepared in 18 caries‐ and restoration‐free extracted molar teeth. All teeth were restored with composite resin. Nine of the teeth were then thermocycled for five hours. All teeth were stained with 0.5 per cent, 1.0 per cent or 1.5 per cent solutions of chloro‐s‐triazinyl dyes (Reactive Red and Reactive Orange 14) or Alizarin Red in order to assess the effectiveness of each stain in detecting marginal leakage. Quantitative assessment indicated that Reactive Orange 14 was superior to the other two stains as it more clearly defined the marginal gaps of the restorations. This superiority was evident for both thermocycled and non‐thermocyc

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01335.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractNot all opacities observed on panoramic dental radiographs are associated with the jaws. Two thousand six hundred and twenty‐eight panoramic radiographs obtained from a single dental health clinic were evaluated for the presence of opacities associated with the mandible. Opacities were observed in 4 per cent of cases. The radiographic features of these opacities are presented. The importance of including soft tissue calcifications which may be superimposed over the mandible on panoramic views in the differential diagnosis is discussed. Information on the various soft tissue calcifications which can occur in this region is presente

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01336.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractEconomic pressures have resulted in an increased demand for surgical treatment under general anaesthesia on an outpatient basis. Previous studies have reported a high incidence of severe morbidity associated with general anaesthesia in both general dentistry and oral surgery. This is particularly marked with dento‐alveolar procedures.The ready availability of relatively inexpensive monitoring equipment together with upgraded standards recently announced by various authorities necessitates that all practitioners review their current practices in the areas of sedation and general anaesthesia.In addition to the ultimate importance of patient care and safety, the increased incidence of litigation leaves no latitude for complacency.This paper details a relatively simple, cost‐effective general anaesthetic technique suitable for outpatient oral surgical procedures in the dental surgery in which all relevant recommendations at the time of writing were observed or exceeded.Associated morbidity was considerably less than previosuly reported, with a high degree of patient satisfact

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01337.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractA case is reported whereby an anterior open‐bite was treated with the Köle osteotomy in an adult Chinese girl. This study documents cephalometrically the post‐treatment changes occurring in the dento‐alveolar complex over a ten year follow‐up period and describes the possible mechanisms contributing to the remarkable stability of the open‐bite

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01338.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractEosinophilic granuloma is a condition which may initially present with oral symptoms. Its variable oral clinical manifestations can result in a potential diagnostic problem for the dental surgeon. Two cases are presented which illustrate the difficulties in making a definitive diagnosis. The importance of a biopsy in diagnosis and the use of a whole‐body skeletal scan in formulating a treatment plan are highlight

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01339.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractThe relationship between nutrition and dental health has been a topic of interest for many years. Recently, the cariostatic properties of cheese have been the subject of intensive research. Most of these studies suggest that the use of cheese as the final food in a meal will help to reduce caries. Several mechanisms by which cheese may reduce enamel demineralization have been proposed.Chewing cheese stimulates saliva flow. The alkaline nature of saliva buffers the acids formed in plaque. There is also an increased rate of sugar clearance due to the diluting action of cheese‐stimulated saliva. Research has also suggested that chewing cheese may reduce the levels of cariogenic bacteria. This may be secondary to the reduced incidence of caries as conditions within a carious lesion tend to promote the growth of these organisms. The high calcium and phosphorus content seems to be another factor in the cariostatic mechanism of cheese. Both casein and whey protein seem to be involved in the reduction of enamel demineralization. Casein phosphopeptides may also be responsible for some anticariogenicity by concentrating calcium and phosphate in plaque.An overview of the effect of milk on dental caries is also presented in this revie

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01340.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractPart 3 presents the results of the examination carried out in Part 2. A summary of the tooth tapping task and the chewing task is given with comment on the coronal, sagittal, and horizontal plane of bruxists and non‐bruxist

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01341.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractThree hundred and seventy casts with 652 registrable proximal surfaces adjacent to crown preparations were examined for iatrogenic damage to hard tissue surfaces. The incidence of damage was high and recommendations for prevention and treatment of such damage are made.

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01342.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractThe results of this survey show that the dental needs of non‐institutionalized Alzheimer patients are quite high — three out of four requiring dental treatment. This concurs with the results of the only other similar study published. Physicians should be made aware of the extent of the problem and the importance of advising dental referral soon after a patient is diagno

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01343.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

AbstractMuscle activity of four jaw‐closing muscles was monitored in 19 healthy subjects by EMG, under conditions associated with cementation of a crown restoration. Each subject performed two maximum voluntary contractions (MVC), each of two minutes duration, separated by a thirty‐minute time interval. There was no visual feedback of muscle activity. Local analgesia, psychologic reinforcement and actual cementation were other conditions tested. All muscles fatigued as a function of time. For this experimental procedure the ipselateral muscles demonstrated less endurance than contralateral muscles. Psychologic reinforcement did not alter muscle activity. The effect of local analgesia was inconclusive and requires further investigat

ISSN:0045-0421    

DOI:10.1111/j.1834-7819.1991.tb01344.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY