Abrasion in human teeth brushed with toothbrush and dentifrice was evaluated quantitatively by SEM. Specimens which included surface enamel and cementum were cut from unerupted wisdom teeth. Controlled brushing was carried out by a brushing machine, with dentifrice or saline, for periods of five and ten minutes. Scratches were counted using SE micrographs. No scratches were observed on the enamel surfaces, due probably to its hardness. The cementum surfaces revealed scratches, the number increasing with the duration of burshing. Brushing with saline was much less abrasive than with dentifrice. It was concluded that damage to the cementum is caused primarily by the dentifrice, brushing per se being a minor factor.
{"title":"In vitro evaluation of enamel and cementum abrasion after toothbrushing.","authors":"J Rajstein, J Lustmann, J Hershkovitz, I Gedalia","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Abrasion in human teeth brushed with toothbrush and dentifrice was evaluated quantitatively by SEM. Specimens which included surface enamel and cementum were cut from unerupted wisdom teeth. Controlled brushing was carried out by a brushing machine, with dentifrice or saline, for periods of five and ten minutes. Scratches were counted using SE micrographs. No scratches were observed on the enamel surfaces, due probably to its hardness. The cementum surfaces revealed scratches, the number increasing with the duration of burshing. Brushing with saline was much less abrasive than with dentifrice. It was concluded that damage to the cementum is caused primarily by the dentifrice, brushing per se being a minor factor.</p>","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"17-20, 15-8"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11502674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Supplemental first and second right mandibular premolars.","authors":"A Ruprecht","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"34, 34"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11502676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pathologic conditions of the oral mucosa associated with ill-fitting dentures: II: Inflammatory papillary hyperplasia of the palate.","authors":"A Buchner, M Helft","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"11-6, 9-13"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11502673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Personnel practising dentistry in Israel compared with predictions made in 1966.","authors":"J Mann, B Heling","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"5-9, 5-8"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11502679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A simple orthodontic procedure, utilising a fixed appliance, is described. The procedure is adopted to correct a problem commonly met with in conservative dentistry. It enables a correctly contoured restoration to be placed which will prevent the development of further dental problems.
{"title":"Loss of arch integrity due to interproximal caries.","authors":"E S Rosenberg, S Imber, C Gorfil, D A Garber","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A simple orthodontic procedure, utilising a fixed appliance, is described. The procedure is adopted to correct a problem commonly met with in conservative dentistry. It enables a correctly contoured restoration to be placed which will prevent the development of further dental problems.</p>","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"35-8, 31-3"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11502677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prevalence of caries and periodontal disease and oral hygiene status in urban teenagers (15--17 years of age).","authors":"A Tirosh, J Z Anaise","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"39-44, 35-9"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11502678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Oral hygiene status and prevalence of periodontal disease among ethnic groups in the Beit-Shemesh region.","authors":"Y Mann, J Z Anaise, J Yodfat","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"21-7, 19-24"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11502675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An alternative to cast bridgework in selected cases.","authors":"E S Rosenberg, D A Garber, S Imber, C Gorfil","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"28 1","pages":"29-34, 25-8"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11592234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A four-unit symmetrical premolar extraction case demands meticulous levelling, overjet reduction, space closure, rotating, paralleling and torqueing to justify the gambit of having extracted the teeth at the commencement of treatment. This involves the patient in complex therapy which may, for any of several reasons, be contra-indicated for that particular patient, though a decision based on the plaster casts alone may have upheld such an approach. The purpose of this article is to discourage automatic decisions to extract first premolars in orthodontic extraction cases. The clinician is offered a classification of special cases in which an alternative should be sought, based on careful consideration of the general dental, facial, physical, psychological and economic state of the patient.
{"title":"Non-routine extractions in orthodontic treatment.","authors":"Y Zilberman, A Becker","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A four-unit symmetrical premolar extraction case demands meticulous levelling, overjet reduction, space closure, rotating, paralleling and torqueing to justify the gambit of having extracted the teeth at the commencement of treatment. This involves the patient in complex therapy which may, for any of several reasons, be contra-indicated for that particular patient, though a decision based on the plaster casts alone may have upheld such an approach. The purpose of this article is to discourage automatic decisions to extract first premolars in orthodontic extraction cases. The clinician is offered a classification of special cases in which an alternative should be sought, based on careful consideration of the general dental, facial, physical, psychological and economic state of the patient.</p>","PeriodicalId":76412,"journal":{"name":"Refu'at ha-peh veha-shinayim (Tel Aviv, Israel : 1969)","volume":"27 4","pages":"15-24, 13-21"},"PeriodicalIF":0.0,"publicationDate":"1978-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11257482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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