摘要:

summaryThe aim of this study was to evaluate denture satisfaction over a 1 year period after extraction of the last teeth. Seventy‐four patients who required immediate denture therapy in the mandible were randomly treated, (1) with complete immediate dentures (22); (2) with immediate overdentures on two lower canines without attachments (26); or (3) with immediate overdentures on two lower canines provided with Dyna® direct magnetic attachments, inserted on the abutments 9 months after treatment (26). Denture satisfaction was estimated by means of questionnaires, filled out by each patient at certain periods, starting before treatment and ending 1 year after denture in sertion. After 1 year approximately 85% of the patients in the three groups were satisfied with their dentures, had got used to them and could eat well. This phenomenon was constant over the whole first year period. No differences in denture satisfaction were found between the three groups. It can be concluded that although patients who receive immediate complete dentures might experience a lot of discomfort during the first year of edentulousness, they are satisfied, in general, with their dentures independent of the treatment procedu

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00224.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryOne hundred and seventy‐three IMZ″‐implants in 81 patients, placed in the anterior region of the maxilla, were evaluated radiographically by two observers. Radiographs were evaluated at three intervals, namely at the time of implant placement, the time of prosthetic restoration and at the latest available radiograph, on average 2 1/2 years after implant placement. In this study marginal bone height and the type of radiolucency adjacent to the implant were determined. Both observers were able to classify the marginal bone height (mesial and distal) and the distinctive type of resorptive defects to an acceptable level of agreement, with Cohen's kappa ranging between 0.48 and 0.69. It was found that, at the most recent visit to the clinic, angular‐shaped resorptive defects are found mesially and/or distally of the implants at approximately 25% of the implants. At this stage 20.7% of the mesial implant sites and 27.9% of the distal implant sites show marginal bone heights less than three‐quarters of the implant length. These findings do not fully underscore and sometimes even contradict the clinical observations which were considered highly sat

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00225.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryThis study focuses on the association between psychological factors and TMJ sounds, and the most suitable research design to establish this relation. A traditional research design is simulated to demonstrate how self‐report may bias findings. A refined design is presented to obtain unbiased estimates of the role of psychological variables. In the ‘naïve’ design the importance of psychological variables was overestimated and the role of physiological variables was underestimated. It was concluded that future studies in the aetiology of TMJ clicking should abandon the use of self‐report as a proxy for objective findings. With the refined design it was found that psychological factors play only a minor role in the prevalence of TMJ sounds. Findings do not support speculation about mechanisms that relate psychological factors to the presence of TM

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00226.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryFour light‐cured calcium hydroxide and three chemically cured resin‐based lining materials were compared for hydoxil ion (OH) release. Results indicated that the chemically cured calcium hydroxide cements were capable of OH− release for a longer period than the light‐cured resin bases. Alkaliner (a chemically cured liner) produced and maintained the highest alkaline environment in the long‐term, whereas calcium fluoride liner and Basic‐L (both resin‐based) showed the lowest values of OH

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00227.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryVariation in the components of soft lining materials, i.e. the size of polymer particles, the ethyl alcohol content of the liquids and the type of plasticizer, were investigated with respect to their effects on the growth and colonization ofCandida albicans. Inhibitory effects on fungal growth and/or acid production were found to vary depending upon the components of soft lining materials. In particular, two plasticizers, benzyl benzoate (BB) and benzyl salicylate (BS), significantly decreased the growth rate, whereas the size of polymer particle had little effect on fungal growth. Ethyl alcohol content of liquid significantly affected the fungal growth and/or acid production depending upon the plasticizer used. For instance, in the case of BS, the antifungal effect was related to ethyl alcohol contents, whereas a reverse effect was observed with benzyl n‐butyl phthalate (BBP). Further examination using scanning electron microscopy revealed thatCandidablastospores colonized lining materials in the following two ways depending on the plasticizers used. On the BS and dibutyl phthalate (DBP) specimen, the blastospore of this yeast associated loosely, whereas, in the case of BB, BBP and butyl phthalyl butyl glycorate (BPBG), fungal blastospore tightly and invasively colonized onto the specimens. These results clearly demonstrated a relationship between components of soft lining materials and fungal growth and colonizatio

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00228.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryThe sternohyoid muscle and anterior belly of the left digastric muscle were electromyographically studied in 20 young adult volunteer individuals. A surface monopolar electrode and a needle monopolar electrode, inserted into the muscle mass 1.0 cm apart were employed. The muscles acted during the following movements of the tongue; protraction, lateral movements to either side, and placement of the tip of the tongue on the hard and soft palate. It was in the latter movement that the most significant action potentials of the sternohyoid muscle were observed, which coincided with a major displacement of the hyoid bone. Both muscles studied do not take part in the kinesiology of the head.

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00229.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryThe location of the mental foramen has often been claimed to be unaffected by alveolar atrophy. In the present study, the distances of the mental foramen and the mandibular canal from the lower cortex of the mandible were compared in a radiographed series of 40 edentulous elderly women with advanced alveolar atrophy and 40 elderly women who had 10 or more lower teeth left. The mental foramen was situated on average 3.8 mm lower in dentulous jaws than in dentulous jaws (P<0.0001). The mandibular canal was also situated lower in edentulous jaws, but the difference was not statistically significant. The results confirm the finding that the mental foramen seems to descend as a result of alveolar atrophy.

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00230.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryIn 12 subjects, a pliable, yet unbreakable, intercuspal interference (aluminium shim onlay splint; uniform height of 0.25 mm) was placed between either the right or left maxillary and mandibular second premolars and first molars. During brief and forceful biting (dynamic chewing stroke of about 20 kg force) the interference emulated a semisoft food bolus, and at the end of biting (subsequent static clenching stroke of about 20 kg force) it emulated a rigid metal interference. During dynamic/static biting, rotational electrognathography measured maximum frontal and horizontal plane torque of the right and left mandibular condyles.Eleven subjects (92%) showed frontal plane upward rotation (mean of 1.0°) of the condyle contralateral to the interference, and one subject (8%) showed frontal plane upward rotation (0.4°) of the condyle ipsilateral to the interference. Two subjects (17%) showed no horizontal plane rotation; seven subjects (58%) showed backward rotation (mean of 0.4°) of the condyle contralateral to the interference; and three subjects (25%) showed backward rotation (mean of 0.3°) of the condyle ipsilateral to the interference. It is suggested that, in the presence of an occlusal interference, mastication may have both short‐ and long‐term detrimental

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00231.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

summaryThe purpose of this study was to introduce a simple cephalometric method to identify individually the possible rotations of the palatal and mandibular planes, using point nasion as a reference, without the need to include the Sella Nasion or Frankfort horizontal planes. Also, using this method, it was possible to detect the antero‐posterior position of subspinale. A random sample of 150 British school children aged 9‐12 years was used. Lateral skull radiographs were taken. The lateral films were traced and digitzed. A mean shape outline ± 1 s.d. for the sample was produced and superimposed on the craniofacial centroid for all the digitized tracings. A facial triangle was established, joining nasion to posterior nasal spine and nasion to the anteroposterior position of the subspinale intersecting the line joining the posterior nasal spine and anterior nasal s

ISSN:0305-182X    

DOI:10.1111/j.1365-2842.1995.tb00232.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY