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Nasal support prostheses
Journal of Dentistry 10, No. 2, 1982, pp.178-179 Printed in Great Britain
J O U R N A L OF DENTISTRY Abstracts from this issue SMALES R. J. Fissure sealants versus amalgams: clinical results over five years. J. Dent. 10 (1982) 95--102. Observations were made over periods of up to five years of occlusal pit and fissure sealants and amalgams placed in posterior permanent teeth by a variety of operators in the same institution. The true failure rate of the sealants was 64 per cent, compared with 4 per cent for the amalgams. Although the abrasion rate for the remaining sealants was also higher, they did show several superior clinical characteristics when compared with the amalgams. A questionnaire survey revealed minimal use of sealants in private dental practice. It was concluded that materials similar to that used in this study should be confined to the sealing of occlusal pits and fissures in restricted situations only. SIDHU S. S., PARKASH H. and CHOPRA P. Renal metastatic carcinoma of the mandible, J. Dent. 10 (1982) 103--106. A rare case of metastatic renal carcinoma of the mandible is reported. Since there was no history indicative of kidney trouble, the primary was located only after histological examination of the growth excised from the mandible. When malignant tumours affect the jaws, skeletal survey and systemic examination may be important. GROSSMAN E. and ROTHWELL P. S. Aspects of the periodontal condition of tamporomandibular joint pain dysfunction patients. J. Dent. 10 (1982) 107--112. Aspects of the periodontal condition of 50 patients referred with temporomandibular joint pain dysfunction syndrome (TMJPDS) were compared with 50 patients of matched age, sex and social status and without previous history of periodontal disorders. Oral hygiene, gingival condition attrition and radiographic features were measured. There was no evidence that the periodontal conditions of TMJPDS patients differed from those of the control group. PROSSER H.,J., GROFFMAN D. M. and WILSON A. D. A sensitive conductimetric method for measuring the material initially water-
leached from dental cements 3. Dental silicate cements. J. Dent. 10 (1982) 1 1 3 120. Determinations of water-leachable material from freshly prepared dental silicate cements by gravimetric, conductimetric and colorimetric methods show that the conductimetric method is more sensitive than the gravimetric method and more precise than the colorimetric method. The conductimetric method is sufficiently sensitive for small test specimens to be used. Results from all three methods are related linearly. REEVE P., STAFFORD G. D., WATSON C. and HOPKINS R. The usa of Cattall's personality profile in patients who have had praprosthetic surgery. J. Dent. 10 (1982) 121--130. The purpose of this study was to test the hypothesis that certain personality characteristics of patients referred to the Dental Hospital for whom preprosthetic surgery was proposed for various clinical reasons, could influence the likelihood of an operation being worthwhile and having a successful and satisfactory outcome from the point of view of the patient and the dental surgeon. Initially, a sample of 26 patients completed Cattell's 16 PF Questionnaire. Three years later 23 of these patients completed a second questionnaire that assessed satisfaction with treatment. The results suggested that the dissatisfied patients were less bright, more unstable, more meticulous, more self-centred than the satisfied group, and that personality questionnaires are more accurate at predicting those patients who are going to be dissatisfied with their postoperative result than clinical predictions. However, these questionnaires are not accurate enough on their own to justify excluding certain patients from undergoing preprosthetic surgery. ADAMS D. Nasal support prostheses. J. Dent. 10 (1982) 131--135. Two cases are presented which describe the use of the post-nasal epithelial inlay with
179
Abstracts subsequent prosthetic support in the treatment of patients with complete loss of nasal septal cartilage. KABAMBE W. M., ROOD J. P. and SOWRAY J. H. A comparison of plain 2 per cant lignocaine and 2 per cent lignocaine with adrenaline in local analgesia for minor oral surgery. J. Dent. 10 (1982) 136--139. This investigation on 162 patients was undertaken to compare the adequacy of analgesia achieved with 2 per cent lignocaine solutions with and without adrenaline when used for dental extractions and minor oral sOrgery. We believe that plain 2 per cent lignocaine solution is unsatisfactory as it provided adequate analgesia in fewer than half of the patients. C A R U A N A P., PATEROMICHELAKIS S. and ROOD J. P. The effects of adrenaline on llgnocaine nerve block anaesthesia. J. Dent. 10 (1982)
140--143. In experiments on rat sciatic nerves, the addition of adrenaline to lignocaine solution improved both the duration and depth of nerve block anaesthesia. Plain lignocaine solution sometimes failed to induce a satisfactory degree of nerve block. BEDI R. and CRAWFORD A. N. Assessment of the medical status of Asian immigrant children undergoing dental care. J. Dent. 10 (1982) 144-148.
Difficulties in obtaining a medical history from patients who do not speak or understand English are often encountered by dentists, especially those who practise in areas where there are many new immigrants. A method of playing a tape-recorded questionnaire to a patient in his native language is described and validated. This technique has proved to be useful in eliciting a relevant medical history in such immigrant patients, prior to commencement of dental treatment. PARKER S. and BRADEN M. New soft lining materials.J. Dent. 10 (1982) 149--153. Two techniques to formulate soft acrylics without easily leachable plasticizers, i.e. the use of polymerizable plasticizers and the use of powdered elastomers with higher alkyl methacrylate esters, have been studied in detail. TURNER C. H. The retention of dental posts. J. Dent. 10 (1982) 154--165.
Zinc phosphate has been found to be the bast luting cement. Additionally, retention is considerably influenced by closeness of fit and the method of applying cement to the post, coating the post with cement gives only one-third of the retention of an identical post luted with cement inserted into the post hole. Guidelines for future studies of post retention have been established.
J O U R N A L OF DENTISTRY Abstracts from this issue SMALES R. J. Fissure sealants versus amalgams: clinical results over five years. J. Dent. 10 (1982) 95--102. Observations were made over periods of up to five years of occlusal pit and fissure sealants and amalgams placed in posterior permanent teeth by a variety of operators in the same institution. The true failure rate of the sealants was 64 per cent, compared with 4 per cent for the amalgams. Although the abrasion rate for the remaining sealants was also higher, they did show several superior clinical characteristics when compared with the amalgams. A questionnaire survey revealed minimal use of sealants in private dental practice. It was concluded that materials similar to that used in this study should be confined to the sealing of occlusal pits and fissures in restricted situations only. SIDHU S. S., PARKASH H. and CHOPRA P. Renal metastatic carcinoma of the mandible, J. Dent. 10 (1982) 103--106. A rare case of metastatic renal carcinoma of the mandible is reported. Since there was no history indicative of kidney trouble, the primary was located only after histological examination of the growth excised from the mandible. When malignant tumours affect the jaws, skeletal survey and systemic examination may be important. GROSSMAN E. and ROTHWELL P. S. Aspects of the periodontal condition of tamporomandibular joint pain dysfunction patients. J. Dent. 10 (1982) 107--112. Aspects of the periodontal condition of 50 patients referred with temporomandibular joint pain dysfunction syndrome (TMJPDS) were compared with 50 patients of matched age, sex and social status and without previous history of periodontal disorders. Oral hygiene, gingival condition attrition and radiographic features were measured. There was no evidence that the periodontal conditions of TMJPDS patients differed from those of the control group. PROSSER H.,J., GROFFMAN D. M. and WILSON A. D. A sensitive conductimetric method for measuring the material initially water-
leached from dental cements 3. Dental silicate cements. J. Dent. 10 (1982) 1 1 3 120. Determinations of water-leachable material from freshly prepared dental silicate cements by gravimetric, conductimetric and colorimetric methods show that the conductimetric method is more sensitive than the gravimetric method and more precise than the colorimetric method. The conductimetric method is sufficiently sensitive for small test specimens to be used. Results from all three methods are related linearly. REEVE P., STAFFORD G. D., WATSON C. and HOPKINS R. The usa of Cattall's personality profile in patients who have had praprosthetic surgery. J. Dent. 10 (1982) 121--130. The purpose of this study was to test the hypothesis that certain personality characteristics of patients referred to the Dental Hospital for whom preprosthetic surgery was proposed for various clinical reasons, could influence the likelihood of an operation being worthwhile and having a successful and satisfactory outcome from the point of view of the patient and the dental surgeon. Initially, a sample of 26 patients completed Cattell's 16 PF Questionnaire. Three years later 23 of these patients completed a second questionnaire that assessed satisfaction with treatment. The results suggested that the dissatisfied patients were less bright, more unstable, more meticulous, more self-centred than the satisfied group, and that personality questionnaires are more accurate at predicting those patients who are going to be dissatisfied with their postoperative result than clinical predictions. However, these questionnaires are not accurate enough on their own to justify excluding certain patients from undergoing preprosthetic surgery. ADAMS D. Nasal support prostheses. J. Dent. 10 (1982) 131--135. Two cases are presented which describe the use of the post-nasal epithelial inlay with
179
Abstracts subsequent prosthetic support in the treatment of patients with complete loss of nasal septal cartilage. KABAMBE W. M., ROOD J. P. and SOWRAY J. H. A comparison of plain 2 per cant lignocaine and 2 per cent lignocaine with adrenaline in local analgesia for minor oral surgery. J. Dent. 10 (1982) 136--139. This investigation on 162 patients was undertaken to compare the adequacy of analgesia achieved with 2 per cent lignocaine solutions with and without adrenaline when used for dental extractions and minor oral sOrgery. We believe that plain 2 per cent lignocaine solution is unsatisfactory as it provided adequate analgesia in fewer than half of the patients. C A R U A N A P., PATEROMICHELAKIS S. and ROOD J. P. The effects of adrenaline on llgnocaine nerve block anaesthesia. J. Dent. 10 (1982)
140--143. In experiments on rat sciatic nerves, the addition of adrenaline to lignocaine solution improved both the duration and depth of nerve block anaesthesia. Plain lignocaine solution sometimes failed to induce a satisfactory degree of nerve block. BEDI R. and CRAWFORD A. N. Assessment of the medical status of Asian immigrant children undergoing dental care. J. Dent. 10 (1982) 144-148.
Difficulties in obtaining a medical history from patients who do not speak or understand English are often encountered by dentists, especially those who practise in areas where there are many new immigrants. A method of playing a tape-recorded questionnaire to a patient in his native language is described and validated. This technique has proved to be useful in eliciting a relevant medical history in such immigrant patients, prior to commencement of dental treatment. PARKER S. and BRADEN M. New soft lining materials.J. Dent. 10 (1982) 149--153. Two techniques to formulate soft acrylics without easily leachable plasticizers, i.e. the use of polymerizable plasticizers and the use of powdered elastomers with higher alkyl methacrylate esters, have been studied in detail. TURNER C. H. The retention of dental posts. J. Dent. 10 (1982) 154--165.
Zinc phosphate has been found to be the bast luting cement. Additionally, retention is considerably influenced by closeness of fit and the method of applying cement to the post, coating the post with cement gives only one-third of the retention of an identical post luted with cement inserted into the post hole. Guidelines for future studies of post retention have been established.