Journal of dental health, oral disorders & therapy最新文献_第8页

Genetic and structural alterations of enamel and dentin- amelogenesis imperfecta, dentinogenesis imperfecta and dentin dysplasia 牙釉质和牙本质的遗传和结构改变——无釉质发育不全、牙本质发育不全和牙本质发育不良

Journal of dental health, oral disorders & therapy Pub Date : 2019-08-28 DOI: 10.15406/jdhodt.2019.10.00494

M. Goldberg

引用次数: 0

Determination of obstructive sleep apnea through the epworth test and cephalometry 通过爱普沃斯试验和头测术测定阻塞性睡眠呼吸暂停

Journal of dental health, oral disorders & therapy Pub Date : 2019-08-09 DOI: 10.15406/jdhodt.2019.10.00493

Cruz-Vargas Lizbet Adriana, M. Guadalupe, González-Ramírez Alejandro de Jesús, Ce. Isaac, Galindo-Reyes Lilia Edith, Suárez-Franco José Luis

引用次数: 0

Is it better to restore or extract deciduous teeth- a survey 乳牙修复好还是拔牙好

Journal of dental health, oral disorders & therapy Pub Date : 2019-08-08 DOI: 10.15406/jdhodt.2019.10.00492

Sara Alshammery, N. Alturki, M. Alomran

引用次数: 0

Maxillary Sinus Pneumatization and Its Relationship with Vitamin D Deficiency; ACross Sectional Study 上颌窦通气及其与维生素D缺乏的关系横断面研究

Journal of dental health, oral disorders & therapy Pub Date : 2019-08-07 DOI: 10.33140/jodh.03.02.5

{"title":"Maxillary Sinus Pneumatization and Its Relationship with Vitamin D Deficiency; A\u0000Cross Sectional Study","authors":"","doi":"10.33140/jodh.03.02.5","DOIUrl":"https://doi.org/10.33140/jodh.03.02.5","url":null,"abstract":"Objectives: To identify any correlation and its severity with the levels of serum vitamin D with the level of maxillary\u0000sinus pneumatization.\u0000Study Design: Descriptive cross-sectional survey.\u0000Setting: Oral and Maxillofacial Department, Fatima Memorial Hospital, Lahore.\u0000Materials and Methods: A sample size of 100 subjects met the inclusion criteria. Serum Vitamin D levels of the patients\u0000was done using liquid chromatography tandem mass spectrometry, also known as LC/MS/MS. While level of sinus\u0000pneumatization was recorded according to Sharan and Majdar classification of maxillary sinus pneumatization. Data\u0000was collected and entered into the Statistical Package for Social Science (SPSS) version 25.0 for analysis. Parametric\u0000analysis was performed that included the Pearson’s Chi- Square test to determine an association between excessive\u0000maxillary sinus pneumatization and hypovitaminosis. A p-value of <0.05 was defined as the level of significance.\u0000Results: A statistically significant relationship was found between levels of hypovitaminosis and levels of pneumatization\u0000with a chi square value to be 0.002 (p<0.05) While there was no statistically significant relationship of age or gender\u0000with levels of maxillary sinus pneumatization and hypovitaminosis D (p>0.05).\u0000Conclusion: There is a significant relationship between levels of hypovitaminosis and levels of pneumatisation.","PeriodicalId":15598,"journal":{"name":"Journal of dental health, oral disorders & therapy","volume":"88 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91403433","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}

引用次数: 0

Assessment of marginal adaptation of lithium disilicate and nanoceramic resin crowns using CAD/CAM system 应用CAD/CAM系统评价二硅酸锂与纳米陶瓷树脂冠的边际适应性

Journal of dental health, oral disorders & therapy Pub Date : 2019-07-24 DOI: 10.15406/jdhodt.2019.10.00490

Vieira Lucas PL, Ávila Gisseli B, Franco Aline BG, Franco Amanda G, Carvalho Geraldo AP, D. Sérgio C, Ramos Elimário V

{"title":"Assessment of marginal adaptation of lithium disilicate and nanoceramic resin crowns using CAD/CAM system","authors":"Vieira Lucas PL, Ávila Gisseli B, Franco Aline BG, Franco Amanda G, Carvalho Geraldo AP, D. Sérgio C, Ramos Elimário V","doi":"10.15406/jdhodt.2019.10.00490","DOIUrl":"https://doi.org/10.15406/jdhodt.2019.10.00490","url":null,"abstract":"The aim of this study is to assess the marginal adaptation of different ceramic materials produced by the CEREC system (Sirona, Germany). An analog of the solid abutment Straumann (Straumann, Basel, Switzerland) measuring 5.5mm of height, with platform of 4.8mm, tilt from the axial wall of 6 degrees and chamfer finish line was used as a master model and scanned with an intraoral scanner (CEREC Omnicam). 20 machined crowns were obtained - 10 manufactured from lithium disilicate blocks (IpsE.maxCad, IvoclarVivadent, Liechtenstein, Germany), 10 manufactured from nanoceramic resin blocks (3M ESPE Lava Utimate, USA). The assessment was made using the Replica Technique (RT) and the cementation coating was measured using an optical microscope Mitutoyo (TM 500). Results show a mean marginal disadaptation of lithium disilicate crowns of 78.63µm, which is significantly larger than the one found for nanoceramic resin crowns - 63.15µm. It is possible to conclude that nanoceramic resin crowns have a better marginal adaptation than lithium disilicate ones. Notwithstanding, results found for both groups are within the clinically acceptable values for indirect restorations.","PeriodicalId":15598,"journal":{"name":"Journal of dental health, oral disorders & therapy","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85767057","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}

引用次数: 0

Difference in Root Canal Length between Populations 不同人群根管长度的差异

Journal of dental health, oral disorders & therapy Pub Date : 2019-06-28 DOI: 10.33140/jodh.03.02.3

{"title":"Difference in Root Canal Length between Populations","authors":"","doi":"10.33140/jodh.03.02.3","DOIUrl":"https://doi.org/10.33140/jodh.03.02.3","url":null,"abstract":"Introduction: The objective of the study was to make the comparison of the root canal length of different types of teeth in black-Africans (Bantu)\u0000to that of Caucasians and Asians.\u0000Materials and Methods: Data from a prospective cross-sectional study of Bantu (Black Africans) subjects aged from 18 to 45 years who were\u0000admitted in Service of Conservative Dentistry of Kinshasa University, root canal length were compared with already published data from studies\u0000involving Caucasians and Asians.\u0000Results: This study includes 720 subjects; 480 (66%) were female and 240 (34%) were male. A total of 818 teeth were examined with 1539\u0000root canals. The upper central incisor and the lower first molar predominated respectively in the maxilla and the mandible regions. There is a\u0000significant difference between the canal length of Bantu and Asians in the palatal canal of the upper second molar by 3.1 mm (p= 0.00). Eight\u0000different canals of Bantu were longer as compared to a single canal for Asians (p <0.05).\u0000This include the Vestibular (V) and palatine (P) canals of Bantu the first premolar (PM1\u0000), palatal of the second premolar (PM2\u0000), mesio-vestibular\u0000(MV), disto-vestibular (DV) and palatine (P) of the first molar (M1\u0000) mesio-vestibular and palatal of the second molar (M2\u0000). The lateral incisors\u0000(IL) (p= 0,01) and the canines (p= 0.12) of the Asians were longer than that of the Bantu. The Caucasians presented with longer canines than\u0000Bantu with a length difference of 1.7 mm (p= 0.11).\u0000Four Caucasians also presented with longer canals of the Mesio-Vestibular (MV) and mesiolingual (ML) of the two molars (M1\u0000 and M2\u0000) as\u0000compared to one for Bantu are the longest (p <0.05).\u0000Exceptionally, the distal canal (D) of the second molar (M2\u0000) of the Bantu was longer than that of the Caucasians, with a length difference of 1.5 mm.\u0000Conclusion: The root canal length of Bantu is between than those of the most Asian and shortest Caucasian.","PeriodicalId":15598,"journal":{"name":"Journal of dental health, oral disorders & therapy","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77562894","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}

引用次数: 2

Knowledge and awareness of sickle cell anemia among dental students in Riyadh Elm University 利雅得榆树大学牙科学生镰状细胞性贫血的知识和意识

Journal of dental health, oral disorders & therapy Pub Date : 2019-06-10 DOI: 10.15406/jdhodt.2019.10.00488

Asma Al Meslet, Heba Al Hamedi, Hanan Al Zhrani, Khayria Al Somaly, Anfal Al Doukhi

引用次数: 1

Fused primary supernumerary tooth associated with maxillary primary lateral incisor: a case report 上颌初级侧切牙融合多生牙1例报告

Journal of dental health, oral disorders & therapy Pub Date : 2019-05-30 DOI: 10.15406/jdhodt.2019.10.00487

V. Mehta, Shahnaz Mansoori

{"title":"Fused primary supernumerary tooth associated with maxillary primary lateral incisor: a case report","authors":"V. Mehta, Shahnaz Mansoori","doi":"10.15406/jdhodt.2019.10.00487","DOIUrl":"https://doi.org/10.15406/jdhodt.2019.10.00487","url":null,"abstract":"Fusion is defined as a single enlarged tooth or joined tooth in which the tooth count reveals a missing tooth when the anomalous tooth is counted as one.1 It is a dental twinning anomaly and has been described by many terms like double teeth, connated tooth, conjoined teeth or twinned teeth. Clinically, it may appear as normal sized or large, depending upon the stage at which embryological union occurs during development. It is commonly confused with gemination which is an incomplete attempt of one tooth bud to divide into two. The frequency of double teeth in deciduous teeth is greater, with a reported prevalence from 0.5 to 2.5% and the occurrence is higher amongst Asian populations.1 Incisors and canines are the most commonly affected teeth in both dentitions.1 Supernumerary tooth arises due to an anomaly in number of teeth due to an excessive dental lamina activity.2 Supernumerary teeth occur rarely in the primary dentition as compared to permanent dentition.3 The prevalence of supernumerary teeth in primary dentition is 0.2-1.9%.4 Males are more commonly affected as compared to females.5 A frequent finding in fusion of primary teeth is the congenital absence of corresponding permanent teeth. The prevalence of tooth fusion in the primary dentition is 0.52.5%.6","PeriodicalId":15598,"journal":{"name":"Journal of dental health, oral disorders & therapy","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78814499","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}

引用次数: 0

The Influence of Age and Gender on Mandibular Indices among the Libyan Population 利比亚人口中年龄和性别对下颌指数的影响

Journal of dental health, oral disorders & therapy Pub Date : 2019-05-29 DOI: 10.33140/jodh.03.02.2

{"title":"The Influence of Age and Gender on Mandibular Indices among the Libyan Population","authors":"","doi":"10.33140/jodh.03.02.2","DOIUrl":"https://doi.org/10.33140/jodh.03.02.2","url":null,"abstract":"Radiographic Mandibular Indices serve as easy and relatively cheap tools for evaluating bone mineralization.\u0000Objectives: To examine the effect of age and gender on three mandibular indices: the panoramic mandibular index\u0000(PMI), the mandibular ratio (MR) and the mandibular cortical index (MCI), among Libyan population.\u0000Methods: The three indices were measured on 317 digital (OPGs) of adult humans (155 males, 162 females). The\u0000sample was divided into six age groups (from 18-25 years through 56-65 years). The measurements were analyzed\u0000for interactions with age and sex, using SPSS (Statistical Package for Social Studies) software version no. 22. The\u0000tests employed were two way ANOVA, the unpaired T-test and chi-square test.\u0000Results: The mean PMI fluctuated between 0.37 s.d. 0.012 and 0.38 s.d. 0.012. among the sixth age groups. One-way\u0000ANOVA statistical test revealed no significant of age on PMI. On the other hand gender variation has effect on PMI,\u0000since independent sample t-test disclosed that the difference between the male and female PMI means statistically\u0000significant. ANOVA test showed that the means of MR among age groups showed a negative correlation i.e. MR mean\u0000declined from 3.01 in 18-25 age groups to 2.7 in 55-65 age groups. In contrary, the gender showed no effect on MR\u0000according two sample t-test at p> 0.05. In regards with MCI, statistical analysis showed that it affected by age that\u0000is C1 was decreasing by age while C2 and C3 were increased by age. Using chi square test the result indicated that\u0000there is a significant difference among the different age group and the two genders in MCI readings.\u0000Conclusion: PMI was influenced significantly by age but minimally by the gender. MR is not affected by gender but\u0000has a negative correlation with age. MCI is affected by both age and gender","PeriodicalId":15598,"journal":{"name":"Journal of dental health, oral disorders & therapy","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84427601","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}

引用次数: 0

Delayed tooth eruption and its pathogenesis in paediatric patient: a review 儿科患者延迟出牙及其发病机制综述

Journal of dental health, oral disorders & therapy Pub Date : 2019-05-28 DOI: 10.15406/jdhodt.2019.10.00486

Haneen Alshukairi

引用次数: 12