Pub Date : 1999-12-01DOI: 10.1590/S0103-06631999000400015
L. Maltagliati, J. F. C. Henriques, Renato Rodrigues de Almeida, M. R. Freitas, A. Pinzan
The purpose of this study was to compare the skeletal and dental changes of the Class II, division 1 malocclusions with and without treatment. Seventy five patients were divided in three groups: control, treated with a modified maxillary splint and treated with fixed appliance and Kloehn headgear, each one having thirteen males and twelve females. The cephalometric radiographs were traced and analyzed by means of the "Dentofacial Planner" software. The results showed that there is little change in the pattern of growth and that the anteroinferior facial height increases in the three groups. There is no significant improvement in the maxillomandibular relationship in the control group, while in the treatment groups, the maxilla seemed to be retracted with a significant decrease in the ANB angle. The dentoalveolar changes showed that the appliance used in the second group is efficient in controlling the vertical extrusion of the upper teeth. In both treated groups, they are moved distally, leading to a normal molar relationship and the reduction of the overjet. In the controls, however, the teeth continue to develop in an anteroinferior direction, maintaining the Class II characteristics.
{"title":"Estudo comparativo das alterações dentoesqueléticas da má-oclusão de Classe II, 1ª divisão de Angle, nos jovens sem tratamento e nos submetidos a dois tipos de aparelhos ortodônticos","authors":"L. Maltagliati, J. F. C. Henriques, Renato Rodrigues de Almeida, M. R. Freitas, A. Pinzan","doi":"10.1590/S0103-06631999000400015","DOIUrl":"https://doi.org/10.1590/S0103-06631999000400015","url":null,"abstract":"The purpose of this study was to compare the skeletal and dental changes of the Class II, division 1 malocclusions with and without treatment. Seventy five patients were divided in three groups: control, treated with a modified maxillary splint and treated with fixed appliance and Kloehn headgear, each one having thirteen males and twelve females. The cephalometric radiographs were traced and analyzed by means of the \"Dentofacial Planner\" software. The results showed that there is little change in the pattern of growth and that the anteroinferior facial height increases in the three groups. There is no significant improvement in the maxillomandibular relationship in the control group, while in the treatment groups, the maxilla seemed to be retracted with a significant decrease in the ANB angle. The dentoalveolar changes showed that the appliance used in the second group is efficient in controlling the vertical extrusion of the upper teeth. In both treated groups, they are moved distally, leading to a normal molar relationship and the reduction of the overjet. In the controls, however, the teeth continue to develop in an anteroinferior direction, maintaining the Class II characteristics.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"13 1","pages":"407-416"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/S0103-06631999000400015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655536","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}
Pub Date : 1999-12-01DOI: 10.1590/S0103-06631999000400010
F. E. Pustiglioni, G. A. Romito
The purpose of this study was to establish the influence of root concavities on clinical attachment loss (CAL) that was diagnosed at the initial evaluation of periodontal patients. CAL data were analyzed in the following teeth of 163 patients: upper and lower second and first bicuspids, cuspids, lateral and central incisors. Data were retrieved from the initial dental chart of patients seeking treatment at the Periodontics Graduate Clinic, School of Dentistry, University of Sao Paulo. Probing was accomplished in every tooth. The following measurements were recorded: CEJ-GM, PD and CAL. PD was performed at 6 sites: mesial-buccal (MB), central-buccal (CB), distal-buccal (DB), mesial-lingual (ML), central-lingual (CL) and distal-lingual (DL). Data from all teeth present were included when, at least, one site with CAL ³ 4mm was observed. After statistical analysis (Friedman and Kruskal-Wallis ANOVA tests) CB and CL sites showed CAL values statistically lower for all upper teeth and for lower first bicuspid, cuspid and lateral incisors. Clinically, CB showed the lowest CAL values in every analyzed teeth, which was followed by CL. The presence of root concavities should not be underestimated either during clinical examination, diagnosis, prognosis, surgical or supportive periodontal treatment. Nevertheless, based on our results, it was not possible to assure that the differences found in CAL values were due to root concavities.
{"title":"Influência das concavidades radiculares nas perdas clínicas de inserção, detectadas no exame clínico periodontal inicial","authors":"F. E. Pustiglioni, G. A. Romito","doi":"10.1590/S0103-06631999000400010","DOIUrl":"https://doi.org/10.1590/S0103-06631999000400010","url":null,"abstract":"The purpose of this study was to establish the influence of root concavities on clinical attachment loss (CAL) that was diagnosed at the initial evaluation of periodontal patients. CAL data were analyzed in the following teeth of 163 patients: upper and lower second and first bicuspids, cuspids, lateral and central incisors. Data were retrieved from the initial dental chart of patients seeking treatment at the Periodontics Graduate Clinic, School of Dentistry, University of Sao Paulo. Probing was accomplished in every tooth. The following measurements were recorded: CEJ-GM, PD and CAL. PD was performed at 6 sites: mesial-buccal (MB), central-buccal (CB), distal-buccal (DB), mesial-lingual (ML), central-lingual (CL) and distal-lingual (DL). Data from all teeth present were included when, at least, one site with CAL ³ 4mm was observed. After statistical analysis (Friedman and Kruskal-Wallis ANOVA tests) CB and CL sites showed CAL values statistically lower for all upper teeth and for lower first bicuspid, cuspid and lateral incisors. Clinically, CB showed the lowest CAL values in every analyzed teeth, which was followed by CL. The presence of root concavities should not be underestimated either during clinical examination, diagnosis, prognosis, surgical or supportive periodontal treatment. Nevertheless, based on our results, it was not possible to assure that the differences found in CAL values were due to root concavities.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"32 1","pages":"375-381"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67654885","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}
Pub Date : 1999-12-01DOI: 10.1590/S0103-06631999000400013
Ruth Helena da Silveira Pedreira, L. Remencius, M. Navarro, N. E. Tomita
Thirty-eight drug-addicted patients undergoing a recuperation process were evaluated through questionnaires and tests of salivary-flow, buffering capacity, DMFT and DMFS so that their psychological profile and oral health conditions could be determined. The results showed that the main causes for drug-addiction was curiosity, family problems and a friendship influence. Salivary flow and buffering capacity varied respectively from 0.64 to 0.94 and from 5.00 to 5.71. The DMFT and DMFS varied from 6.28 to 14.69 for the component Decayed; from 14.64 to 34.52 for the component Missing; from 3.45 to 18.14 for the component Filled and from 0.0 to 2.86 for the component Extraction Indicated. It can be concluded that patients were emotionally disturbed with a shy behavior. Salivary flow and buffering capacity showed normal values and the DMFS and DMFT showed high levels.
{"title":"Condições de saúde bucal de drogaditos em recuperação","authors":"Ruth Helena da Silveira Pedreira, L. Remencius, M. Navarro, N. E. Tomita","doi":"10.1590/S0103-06631999000400013","DOIUrl":"https://doi.org/10.1590/S0103-06631999000400013","url":null,"abstract":"Thirty-eight drug-addicted patients undergoing a recuperation process were evaluated through questionnaires and tests of salivary-flow, buffering capacity, DMFT and DMFS so that their psychological profile and oral health conditions could be determined. The results showed that the main causes for drug-addiction was curiosity, family problems and a friendship influence. Salivary flow and buffering capacity varied respectively from 0.64 to 0.94 and from 5.00 to 5.71. The DMFT and DMFS varied from 6.28 to 14.69 for the component Decayed; from 14.64 to 34.52 for the component Missing; from 3.45 to 18.14 for the component Filled and from 0.0 to 2.86 for the component Extraction Indicated. It can be concluded that patients were emotionally disturbed with a shy behavior. Salivary flow and buffering capacity showed normal values and the DMFS and DMFT showed high levels.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"13 1","pages":"395-399"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/S0103-06631999000400013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655123","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}
Pub Date : 1999-12-01DOI: 10.1590/S0103-06631999000400014
Mariana Roesch Ely, Vládia Machado Antunes, Marília Gerhardt de Oliveira
Using lateral X-ray examinations, this study establishes values between the deepest midline convexity on the maxilla (point A) and the facial plane, for the cranial anterior length, the facial posterior height, the porium and the length of the mandible from black subjects of both genders. After comparison of these dimensions based on normative standards submitted to a statistical analysis, specific values that were used as parameters in orthognathic interventions to correct facial deformities were defined. The statistical analysis revealed that the only lateral linear cephalometric dimension that did not exhibit statistically significant difference when compared to the samples of male and female groups was the point A. However, when the average of the lateral linear cephalometric dimensions of black subjects was compared to that of white ones, it was observed that the cranial anterior length was the only linear dimension that did not present statisticaly significant difference in relation to the white group.
{"title":"Estudo de cinco dimensões esqueléticas lineares, em indivíduos da raça negra, através de análise cefalométrica computadorizada","authors":"Mariana Roesch Ely, Vládia Machado Antunes, Marília Gerhardt de Oliveira","doi":"10.1590/S0103-06631999000400014","DOIUrl":"https://doi.org/10.1590/S0103-06631999000400014","url":null,"abstract":"Using lateral X-ray examinations, this study establishes values between the deepest midline convexity on the maxilla (point A) and the facial plane, for the cranial anterior length, the facial posterior height, the porium and the length of the mandible from black subjects of both genders. After comparison of these dimensions based on normative standards submitted to a statistical analysis, specific values that were used as parameters in orthognathic interventions to correct facial deformities were defined. The statistical analysis revealed that the only lateral linear cephalometric dimension that did not exhibit statistically significant difference when compared to the samples of male and female groups was the point A. However, when the average of the lateral linear cephalometric dimensions of black subjects was compared to that of white ones, it was observed that the cranial anterior length was the only linear dimension that did not present statisticaly significant difference in relation to the white group.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"13 1","pages":"401-405"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/S0103-06631999000400014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655263","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}
Pub Date : 1999-12-01DOI: 10.1590/S0103-06631999000400011
Claudio Hideki Kubo, A. Gomes, Antonio Olavo Cardosos Jorge
The presence of humidity inside the root canal system after instrumentation and removal of the septic content can influence the apex sealing, and consequently, the success of the endodontic treatment. The goal of this paper was to evaluate the influence of the number of autoclave sterilization cycles on the absorbing capability and speed of absorption of paper points used in endodontic procedures. Four hundred and forty paper points number 40 were analyzed and the trade marks used were: Tanari, Tanari "cell pack" , Diadent "cell pack" and Conne. Ten points of each manufacturer received 0 to ten cycles of autoclave sterilization (134oC/15 psi/15 min). After each sterilization cycle, absorption capability and absorption velocity to 1% sodium hypochlorite solution were evaluated. Data were analyzed statistically by the ANOVA and Tukey tests. In conclusion, the trade marks which suffered less influence by the sterilization cycles in decreasing order were: Tanari, Tanari "cell pack" , Conne and Diadent. The best absorption velocities were observed in: Tanari "cell pack", Tanari, Conne and Diadent. The autoclave process seems to be a viable procedure, when 10 cycles are applied, only for the paper points of trade mark Tanari used in endodontic procedures.
{"title":"Efeitos da autoclavação na velocidade e capacidade absorvente de cones de papel empregados em Endodontia","authors":"Claudio Hideki Kubo, A. Gomes, Antonio Olavo Cardosos Jorge","doi":"10.1590/S0103-06631999000400011","DOIUrl":"https://doi.org/10.1590/S0103-06631999000400011","url":null,"abstract":"The presence of humidity inside the root canal system after instrumentation and removal of the septic content can influence the apex sealing, and consequently, the success of the endodontic treatment. The goal of this paper was to evaluate the influence of the number of autoclave sterilization cycles on the absorbing capability and speed of absorption of paper points used in endodontic procedures. Four hundred and forty paper points number 40 were analyzed and the trade marks used were: Tanari, Tanari \"cell pack\" , Diadent \"cell pack\" and Conne. Ten points of each manufacturer received 0 to ten cycles of autoclave sterilization (134oC/15 psi/15 min). After each sterilization cycle, absorption capability and absorption velocity to 1% sodium hypochlorite solution were evaluated. Data were analyzed statistically by the ANOVA and Tukey tests. In conclusion, the trade marks which suffered less influence by the sterilization cycles in decreasing order were: Tanari, Tanari \"cell pack\" , Conne and Diadent. The best absorption velocities were observed in: Tanari \"cell pack\", Tanari, Conne and Diadent. The autoclave process seems to be a viable procedure, when 10 cycles are applied, only for the paper points of trade mark Tanari used in endodontic procedures.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"13 1","pages":"383-389"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655011","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}
Pub Date : 1999-12-01DOI: 10.1590/S0103-06631999000400016
R. Carvalho, B. Ciucchi, H. Sano, M. Yoshiyama, D. Pashley
This paper has focused on the factors that may affect the permeability of adhesive resins into the demineralized dentin matrix during the development of the bonding process. The effects of surface moisture are discussed respectively to the adhesive systems, and the problems related to incomplete hybrid layer formation presented.
{"title":"Resin diffusion through demineralized dentin matrix","authors":"R. Carvalho, B. Ciucchi, H. Sano, M. Yoshiyama, D. Pashley","doi":"10.1590/S0103-06631999000400016","DOIUrl":"https://doi.org/10.1590/S0103-06631999000400016","url":null,"abstract":"This paper has focused on the factors that may affect the permeability of adhesive resins into the demineralized dentin matrix during the development of the bonding process. The effects of surface moisture are discussed respectively to the adhesive systems, and the problems related to incomplete hybrid layer formation presented.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"13 1","pages":"417-424"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/S0103-06631999000400016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67655358","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}
Pub Date : 1999-07-01DOI: 10.1590/S0103-06631999000300016
B. Ramos, L. Maia
The aim of this study was to analyse the preventive and educative practice in Dentistry for infants, emphasizing the nursing caries, and mainly the parents' role in the beginning and development of this disturbance as well as their importance on their babies health care, and the social, educative and also politic importance of the dental professional on the oral health of babies.
{"title":"Nursing caries and the importance of oral health promotion of 0 to 4 year-old children","authors":"B. Ramos, L. Maia","doi":"10.1590/S0103-06631999000300016","DOIUrl":"https://doi.org/10.1590/S0103-06631999000300016","url":null,"abstract":"The aim of this study was to analyse the preventive and educative practice in Dentistry for infants, emphasizing the nursing caries, and mainly the parents' role in the beginning and development of this disturbance as well as their importance on their babies health care, and the social, educative and also politic importance of the dental professional on the oral health of babies.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"13 1","pages":"303-311"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67654227","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}
Pub Date : 1999-07-01DOI: 10.1590/S0103-06631999000300008
Antônio Castelo Branco Teixeira, G. Marcucci, João Gualberto de Cerqueira Luz
The authors analyzed the frequency of malocclusion, Helkimo (1974) anamnestic and clinical dysfunction indexes in patients with temporomandibular joint dysfunction and their possible correlation. One hundred and ten patients with these conditions were evaluated independent of age and gender. Signs and symptoms were evaluated, indicating levels of Helkimo indexes, Angle classification, over-jet, over-bite, cross-bite and missing teeth. The authors concluded that there was a high incidence of Angle class II and overjet larger than two milimeters. Among the Helkimo indexes there was a slight predominance of Anamnesthic Index AiII (symptoms of severe dysfunction) and Clinical Index level DiI (mild dysfunction). A statistically significant relationship was found between the Clinical Index and the Angle classification as between Anamnestic Index and overbite.
{"title":"Prevalência das maloclusões e dos índices anamnésicos e clínicos, em pacientes com disfunção da articulação temporomandibular","authors":"Antônio Castelo Branco Teixeira, G. Marcucci, João Gualberto de Cerqueira Luz","doi":"10.1590/S0103-06631999000300008","DOIUrl":"https://doi.org/10.1590/S0103-06631999000300008","url":null,"abstract":"The authors analyzed the frequency of malocclusion, Helkimo (1974) anamnestic and clinical dysfunction indexes in patients with temporomandibular joint dysfunction and their possible correlation. One hundred and ten patients with these conditions were evaluated independent of age and gender. Signs and symptoms were evaluated, indicating levels of Helkimo indexes, Angle classification, over-jet, over-bite, cross-bite and missing teeth. The authors concluded that there was a high incidence of Angle class II and overjet larger than two milimeters. Among the Helkimo indexes there was a slight predominance of Anamnesthic Index AiII (symptoms of severe dysfunction) and Clinical Index level DiI (mild dysfunction). A statistically significant relationship was found between the Clinical Index and the Angle classification as between Anamnestic Index and overbite.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"13 1","pages":"251-256"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67654331","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}
Pub Date : 1999-07-01DOI: 10.1590/S0103-06631999000300013
Cláudio Maníglia Ferreira, I. A. Orsi, Izabel Cristina Fröner
The objective of the present study was to compare the change in temperature on the external surface of the root in vitro during post and core preparation using 4 different techniques. Forty lower single-root premolars instrumented and filled with gutta-percha and stored in 10% formalin were divided into 4 groups according to the technique of gutta-percha removal employed, using heated endodontic pluggers and Peeso, Largo and Gates-Glidden burs. The experiment was performed in a chamber with controlled temperature maintained at about 26°C. For gutta-percha removal from the canals, 2/3 of the root length was calculated and approximately 4 mm of apical filling was left. The temperature of the external surface of the root was measured with a thermo-couple connected to a multimeter and measurements were made in 3 regions: cervical (about 3 mm below the cementum-enamel junction), middle and apical regions of a predetermined measurent. Analysis of variance indicated significant differences (p < 0.01) between regions and techniques. The complementary Tukey test indicated that the heated endodontic pluggers produced the greatest increased in temperature among the three techniques, and the Peeso bur produced the greatest increase in temperature among the burs used. Among regions, the apical one presented the greatest change in temperature for all the techniques evaluated.
{"title":"Alteração da temperatura radicular externa durante o preparo para contenção intra-radicular","authors":"Cláudio Maníglia Ferreira, I. A. Orsi, Izabel Cristina Fröner","doi":"10.1590/S0103-06631999000300013","DOIUrl":"https://doi.org/10.1590/S0103-06631999000300013","url":null,"abstract":"The objective of the present study was to compare the change in temperature on the external surface of the root in vitro during post and core preparation using 4 different techniques. Forty lower single-root premolars instrumented and filled with gutta-percha and stored in 10% formalin were divided into 4 groups according to the technique of gutta-percha removal employed, using heated endodontic pluggers and Peeso, Largo and Gates-Glidden burs. The experiment was performed in a chamber with controlled temperature maintained at about 26°C. For gutta-percha removal from the canals, 2/3 of the root length was calculated and approximately 4 mm of apical filling was left. The temperature of the external surface of the root was measured with a thermo-couple connected to a multimeter and measurements were made in 3 regions: cervical (about 3 mm below the cementum-enamel junction), middle and apical regions of a predetermined measurent. Analysis of variance indicated significant differences (p < 0.01) between regions and techniques. The complementary Tukey test indicated that the heated endodontic pluggers produced the greatest increased in temperature among the three techniques, and the Peeso bur produced the greatest increase in temperature among the burs used. Among regions, the apical one presented the greatest change in temperature for all the techniques evaluated.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"178 1","pages":"283-287"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67654360","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}
Pub Date : 1999-07-01DOI: 10.1590/S0103-06631999000300007
Hyun Koo, J. Cury
The aim of this study was to evaluate in situ the effectiveness of a dentifrice containing monofluorophosphate (MFP) and dicalcium phosphate dihydrate (DCPD). Eight volunteers took part in this crossover, double blind design study performed in two phases of 45 days. The subjects were acrylic resin appliances containing four blocks of human dental enamel with artificial caries to evaluate fluoride uptake and remineralization by MFP/DCPD and Placebo dentifrices. After each phase the blocks of enamel were removed and the analysis of total fluoride (ppm F) and microhardness (Knoop) were evaluated. The results of total integrated areas under the curves of the two dentifrices treatments showed that the MFP/DCPD dentifrice produced a significantly higher fluoride uptake than the Placebo dentifrice (4508.55 ± 965.82 and 1485.51 ± 191.72, respectively) and the microhardness data demonstrated 34% and -14% of remineralization for MFP/DCPD and Placebo dentifrices, respectively. It was concluded that MFP/DCPD dentifrice was effective not only on fluoride uptake, but also on remineralization of artificial caries lesions of human dental enamel.
{"title":"Avaliação in situ de um dentifrício contendo MFP/DCPD na incorporação de flúor e remineralização do esmalte dental humano","authors":"Hyun Koo, J. Cury","doi":"10.1590/S0103-06631999000300007","DOIUrl":"https://doi.org/10.1590/S0103-06631999000300007","url":null,"abstract":"The aim of this study was to evaluate in situ the effectiveness of a dentifrice containing monofluorophosphate (MFP) and dicalcium phosphate dihydrate (DCPD). Eight volunteers took part in this crossover, double blind design study performed in two phases of 45 days. The subjects were acrylic resin appliances containing four blocks of human dental enamel with artificial caries to evaluate fluoride uptake and remineralization by MFP/DCPD and Placebo dentifrices. After each phase the blocks of enamel were removed and the analysis of total fluoride (ppm F) and microhardness (Knoop) were evaluated. The results of total integrated areas under the curves of the two dentifrices treatments showed that the MFP/DCPD dentifrice produced a significantly higher fluoride uptake than the Placebo dentifrice (4508.55 ± 965.82 and 1485.51 ± 191.72, respectively) and the microhardness data demonstrated 34% and -14% of remineralization for MFP/DCPD and Placebo dentifrices, respectively. It was concluded that MFP/DCPD dentifrice was effective not only on fluoride uptake, but also on remineralization of artificial caries lesions of human dental enamel.","PeriodicalId":77611,"journal":{"name":"Revista de odontologia da Universidade de Sao Paulo","volume":"58 1","pages":"245-249"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67653698","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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