abstract：:A survey of commercial dental laboratories in Geneva and Vancouver has been carried out using both questionnaires and telephone enquiries. It was concerned with the types of fixed prostheses constructed and the impact of recent technical developments. The results of the study revealed that cosmetic factors played a ma...

journal_title：Journal of oral rehabilitation

authors： MacEntee MI,Belser UC

更新日期：1988-05-01 00:00:00

abstract：:Fifty dentate maxillary casts, obtained from thirty-four males and sixteen females, were mounted in the three-dimensional co-ordinate system of a contour meter. A transverse line of reference (x-axis) was drawn through the distal contact points of the maxillary canines, at a right angle to the y-axis which passed thro...

journal_title：Journal of oral rehabilitation

authors： Grove HF,Christensen LV

更新日期：1988-03-01 00:00:00

abstract：:Peri-implant tissues of the single-crystal sapphire implant connected with neighbouring teeth by a metal bridge-work were examined clinically, radiographically, and histologically in ten monkeys. Professional tooth cleaning was performed during the study. At 3-12 months after insertion, most of the implants were firml...

journal_title：Journal of oral rehabilitation

authors： Hashimoto M,Akagawa Y,Nikai H,Tsuru H

更新日期：1988-01-01 00:00:00

abstract：:The clinical and pathological study was performed in order to determine the histopathological and cytoimmunological characteristics of denture stomatitis. All specimens were biopsy materials from seventeen patients with denture stomatitis. Normal palatal mucosae from ten patients served as the control. In addition to ...

journal_title：Journal of oral rehabilitation

authors： Morimoto K,Kihara A,Suetsugu T

更新日期：1987-11-01 00:00:00

abstract：:Forces required by complete dentures for penetrating some commonly used food items were measured experimentally. These forces were compared with the maximal bite forces of twenty-seven complete denture wearers. Food items that required the greatest forces in direct closure were rye bread (167 N), raw carrot (118 N), b...

journal_title：Journal of oral rehabilitation

authors： Eerikäinen E,Könönen M

更新日期：1987-11-01 00:00:00

abstract：:Because of contradictory reports between clinical and radiographic findings, occlusal analysis correlated to dental panoramic findings was completed in 147 patients treated with fixed prosthesis. Both occlusal interferences and radiographic changes in the TMJ area and/or in dentition were frequently discovered. Dysfun...

journal_title：Journal of oral rehabilitation

authors： Ettala-Ylitalo UM,Syrjänen S,Markkanen H

更新日期：1987-09-01 00:00:00

abstract：:Recent evidence has been presented suggesting that 'depression' headaches and classic migraines may be related to extended sleep duration. This analogue study was designed to evaluate the possibility that mild to moderate headaches induced by excessive sleep might be related to increased muscle activity. Eight subject...

journal_title：Journal of oral rehabilitation

authors： Moss RA,McClure JT,Jackson MC,Lombardo TW

更新日期：1987-07-01 00:00:00

abstract：:Four designs of amalgam-core anchorage were compared in a laboratory study for the inability to withstand the horizontal component of occlusal force. Amalgam cores were constructed for extracted teeth with either composite resin-cemented Dentatus dowels, or with Para-post or Flexi-post dowels cemented with phosphate c...

journal_title：Journal of oral rehabilitation

authors： Gordon M,Metzger Z

更新日期：1987-07-01 00:00:00

abstract：:A new method is described for the quantification of leakage between etched enamel and restorative resin. A significant correlation was demonstrated between the plane of enamel section prior to etching and subsequent leakage. It is suggested that these findings will be of value in the design of cavities for use with th...

journal_title：Journal of oral rehabilitation

authors： Crawford PJ,Whittaker DK,Owen GM

更新日期：1987-05-01 00:00:00

abstract：:A total of 969 proximal contacts in forty volunteer subjects was examined for proximal contact integrity with shim stock. It passed uninhibited through 88% of the contacts. Neither sex nor age affected the evaluation; however, shim stock was more likely to pass through contacts with enamel surfaces than those which we...

journal_title：Journal of oral rehabilitation

authors： Boice PA,Niles SM,Dubois LM

更新日期：1987-01-01 00:00:00

abstract：:Restoring broken down non-vital teeth implies in general the provision of a post and core foundation. Many materials and techniques have been introduced for this purpose in recent years. In this article the advantages and disadvantages of the cast and the non-cast post and core are discussed. The problems involved wit...

journal_title：Journal of oral rehabilitation

authors： Käyser AF,Leempoel PJ,Snoek PA

更新日期：1987-01-01 00:00:00

abstract：:A photographic technique was used to determine the instantaneous centre of rotation of a fixed unilateral distal extension partial denture and the teeth to which it was attached. The teeth involved were the lower canine and first premolar. When the two crowns were splinted together to provide support, both vertical an...

journal_title：Journal of oral rehabilitation

authors： Feingold GM,Grant AA,Johnson W

更新日期：1986-11-01 00:00:00

abstract：:The purpose of this study was to develop standardized reproducible testing methods for evaluating physical properties of periodontal dressing materials. Three commercial compositions (Coe-Pak, Coe-Pak Hard & Fast Set and WondrPak) were studied. Working and setting times were determined by observing the continuous chan...

journal_title：Journal of oral rehabilitation

authors： Rubinoff CH,Greener EH,Robinson PJ

更新日期：1986-11-01 00:00:00

abstract：:This study consists of 147 subjects treated with fixed prostheses 4 years previously. Occlusal analyses were made, and the fillings, crowns, and pontics on the occlusal surfaces were recorded. Occlusal interferences were found in 42.6% of the fillings, in 34.9% of the crowns, in 27.0% of the pontics, and in 24.6% of t...

journal_title：Journal of oral rehabilitation

authors： Ettala-Ylitalo UM,Markkanen H,Yli-Urpo A

更新日期：1986-09-01 00:00:00

abstract：:A longitudinal radiographic cephalometric and electromyographic investigation was performed on eighteen subjects provided with an immediate complete upper and a partial lower denture. The observation stages were: before final extractions and 7 weeks, 6 months and 1 year after denture insertion. The cephalometric analy...

journal_title：Journal of oral rehabilitation

authors： Tallgren A,Tryde G,Mizutani H

更新日期：1986-07-01 00:00:00

abstract：:Measurements were made of the spectral distribution of light emitted from five commercially available visible-light polymerization units. All emissions peaked between 400 and 500 nm but the 'functional' irradiance varied by a factor of 20 for the sources investigated. Timer checks revealed errors of up to 20%. Light o...

journal_title：Journal of oral rehabilitation

authors： Moseley H,Strang R,Stephen KW

更新日期：1986-05-01 00:00:00

abstract：:From a group of consecutive patients referred for diagnosis and treatment of functional disturbances of the masticatory system, two groups, a young group (16-30 years, 113 subjects) and an older group (55-80 years, sixty-three subjects) were selected for a follow-up study. A self-administered questionnaire was mailed ...

journal_title：Journal of oral rehabilitation

authors： Wedel A,Carlsson GE

更新日期：1986-03-01 00:00:00

abstract：:Some alginate impression materials produce rough, chalky, soft surfaces on gypsum casts. This is recognized by various standards, which include tests for an alginate's compatibility with gypsum, and its capacity to record details and impart these to a gypsum cast. These qualities were looked at in this study. The meth...

journal_title：Journal of oral rehabilitation

authors： Owen CP

更新日期：1986-01-01 00:00:00

abstract：:Mandibular condyles and temporal fossae were studied in a large Romano-British collection of skulls. The size and shape of the condyles differed from those in previous populations studied. Changes in form or shape of the condyles were age-related and could be correlated to the number of teeth lost on the same side and...

journal_title：Journal of oral rehabilitation

authors： Whittaker DK,Davies G,Brown M

更新日期：1985-09-01 00:00:00

abstract：:An epidemiological investigation of the temporomandibular joint in 800 persons was undertaken, including two groups of 400 persons aged 15-18 and 19-22 years. The numbers of boys and girls was about the same. Interview and clinical examination comprised morphological and functional features of the stomatognathic syste...

journal_title：Journal of oral rehabilitation

authors： Grosfeld O,Jackowska M,Czarnecka B

更新日期：1985-03-01 00:00:00

abstract：:An electron microprobe was used to investigate the composition and microstructure of regions in the reaction zones around particles of approximately Ag-Cu eutectic composition in commercially available and experimental dispersion modified amalgams. Two distinct regions were identified. Techniques of phase composition ...

journal_title：Journal of oral rehabilitation

authors： Bryant RW

更新日期：1985-01-01 00:00:00

abstract：:Repeatability of the centric jaw relation recorded with the one-handed push-back technique was tested on six subjects. Condylar positions were radiographically recorded using cold cure acrylic indices to lock the jaws in centric. This was done on two occasions with an interval of 1 week between recordings. Utilizing t...

journal_title：Journal of oral rehabilitation

authors： Hellsing G,McWilliam JS

更新日期：1985-01-01 00:00:00

abstract：:The silent period in the jaw-closing muscles of nine healthy subjects was investigated. The stimulus types used were the open-close-clench movement (OCC), the mechanical chin tap and electrical skin stimulation. Irrespective of the jaw-closing speed for the OCC movements only the unmeasurable and single type silent pe...

journal_title：Journal of oral rehabilitation

authors： Kroon GW,Naeije M

更新日期：1984-11-01 00:00:00

abstract：:Three experimental inhomogeneous microfilled composites (IMC) containing spherical prepolymerized particles with an interpenetrating network (IPN) were compared with the reference materials Estic MF, Adaptic and the amalgam Dispersalloy in vitro. With surface roughness tests, different polishing procedures were invest...

journal_title：Journal of oral rehabilitation

authors： Roulet JF,Hirt T,Lutz F

更新日期：1984-09-01 00:00:00

abstract：:The in vivo corrosion of Dispersalloy amalgam restorations was characterized by scanning electron microscopy and energy dispersive X-ray analysis. It was observed that the corrosion of CuSn resulted in pitting on the restoration surface. Corrosion of Sn-rich grain boundaries led to intergranular separation of gamma 1 ...

journal_title：Journal of oral rehabilitation

authors： McTigue D,Brice C,Nanda CR,Sarkar NK

更新日期：1984-07-01 00:00:00

abstract：:Thermal diffusivity values for glass ionomer and polycarboxylate cements have been determined for varying proportions of cement powder and liquid. Diffusivity is observed to be an increasing function of powder/liquid ratio. This is discussed in relation to the application of these cements as cavity bases. ...

journal_title：Journal of oral rehabilitation

authors： Watts DC,Smith R

更新日期：1984-05-01 00:00:00

abstract：:Class V cavities were prepared on twelve extracted teeth and then filled with amalgam which was condensed in six cases by hand and six by mechanical means. SEM records were obtained before and after ultrasonic scaling of the restored area. They showed that such scaling had a deleterious effect on the surface of the am...

journal_title：Journal of oral rehabilitation

authors： Rajstein J,Tal M

更新日期：1984-05-01 00:00:00

abstract：:Mandibular movement during lateral articulatory movements was studied in young subjects with no apparent dental disease or malocclusion. A closed circuit television movement detector was used. Signals of each vector of movement were combined in pairs to provide envelopes of movement in three planes, mutually at right ...

journal_title：Journal of oral rehabilitation

authors： Faulkner KD,Atkinson HF

更新日期：1984-03-01 00:00:00

abstract：:A biochemical test for muscle damage (serum creatine kinase estimation) was used to investigate twenty-six normal subjects, nine normal subjects following experimental bruxism and twenty-seven patients suffering from mandibular pain dysfunction. No significant differences in serum creatine kinase levels were detected ...

journal_title：Journal of oral rehabilitation

authors： Cox PJ,Rothwell PS

更新日期：1984-01-01 00:00:00

abstract：:This paper explores seven different factors which should be considered when prescribing the lower anterior prosthesis: alignment as seen from the incisal; height of the incisal edges; degree of irregularity of the teeth; character of the incisal edge; height of the cuspid; mesio-incisal angle of the cuspid; and ridge ...

journal_title：Journal of oral rehabilitation

authors： Lorton L,Whitbeck P

更新日期：1983-07-01 00:00:00

abstract：:Earlier work revealed that creep of a particular dental amalgam can be described by the model F(t) = F0 exp (t/t0)m. Here F(t) is the creep compliance at time t, whereas F0, t0 and m are constants of the model. In the previous study only three alloys were used. It was the aim of this study to investigate the factor al...

journal_title：Journal of oral rehabilitation

authors： Vrijhoef MM,Lourens FL,Leijdekkersgovers AF

更新日期：1983-07-01 00:00:00

abstract：:In a sample of fifteen partially edentulous subjects assigned for immediate complete denture treatment, a correlation analysis was performed between pre-extraction facial morphology determined from lateral cephalograms, and EMG activity of the anterior temporal and masseter muscles in maximal clench and tapping of tee...

journal_title：Journal of oral rehabilitation

authors： Tallgren A,Holden S,Lang BR,Ash MM Jr

更新日期：1983-03-01 00:00:00

abstract：:A method for accelerating the dissolution and erosion of 'acidic' dental cements has been developed which gave relative solubilities in accordance with in vivo observations, in contrast to the conventional test. It involves subjecting 24-h-old specimens to a jet of dilute acid (lactic or citric) and determining weight...

journal_title：Journal of oral rehabilitation

authors： Beech DR,Bandyopadhyay S

更新日期：1983-01-01 00:00:00

abstract：:The translucency and colour of a composite resin are characterized by two wavelength-dependent parameters: the absorption coefficient, K and the scattering coefficient, S. These parameters were calculated according to the Kubelka-Munk (1931) equations for two commercial resins. The calculations were based on reflectan...

journal_title：Journal of oral rehabilitation

authors： Grajower R,Wozniak WT,Lindsay JM

更新日期：1982-09-01 00:00:00

abstract：:The suitability of the soft tissue over the chin as a reference point in studies of mandibular performance during chewing was investigated. The movements of reference diodes (LEDs), one on the chin and the other attached to the lower front tooth, were registered simultaneously using the Selspot system and analysed in ...

journal_title：Journal of oral rehabilitation

authors： Jemt T,Hedegård B

更新日期：1982-05-01 00:00:00

abstract：:An electromyographic study of the masseter and anterior temporal muscles was performed on fifteen bruxism patients with clinical symptoms such as muscle pain, fatigue and tenderness. The slopes of the voltage tension (V/T) curves (calculated as the value of the relative inclination between the integrated electromyogra...

journal_title：Journal of oral rehabilitation

authors： Hamada T,Kotani H,Kawazoe Y,Yamada S

更新日期：1982-03-01 00:00:00

abstract：:The absorption of gas during heating and melting of pure gold and of two dental gold alloys was studied by gas chromatography. The metals were melted by two methods, i.e. gas-torch and electric heating. The specimens were analysed regarding the content of hydrogen, oxygen and nitrogen. The amount of nitrogen was not m...

journal_title：Journal of oral rehabilitation

authors： Engström G,Fredriksson H,Wictorin L

更新日期：1982-01-01 00:00:00

abstract：:Physiological tooth movements during mandibular excursions with and without occlusion have been considered. Using electronic and pantographic techniques, anterior guidance and tooth movements during simulated mastication (without a bolus) were investigated. Investigations in the absence of occlusion showed that elasti...

journal_title：Journal of oral rehabilitation

authors： Siebert G

更新日期：1981-11-01 00:00:00

abstract：:The variability of the EMG silent period in jaw closing muscles of TMJ dysfunction patients was examined. Considerable within-subject variability was found in the duration of the silent period. This variability increased with symptom severity. The authors recommend that multiple measurements be averaged to obtain a mo...

journal_title：Journal of oral rehabilitation

authors： McCall WD Jr,Gale EN,Uthman AA

更新日期：1981-03-01 00:00:00

abstract：:A technique has been developed for the preparation of test bars of the different types of aluminous porcelains using the standard laboratory procedures for the preparation of aluminous porcelain jacket crowns. Up to now the investigation of the properties of dental porcelain has been conducted using test specimens pro...

journal_title：Journal of oral rehabilitation

authors： Hussain MA,Bradford EW,Charlton G

更新日期：1981-03-01 00:00:00