Annals of dentistry最新文献_第9页

Malaysian senior dental officers’ perceptions of the employability of male dental nurses and possible policy implications 马来西亚高级牙科官员对男性牙科护士就业能力的看法及其可能的政策影响

Annals of dentistry Pub Date : 2012-12-31 DOI: 10.22452/ADUM.VOL19NO2.2

N. Nor, N. Murat, A. Mohamed, A. Gambôa

{"title":"Malaysian senior dental officers’ perceptions of the employability of male dental nurses and possible policy implications","authors":"N. Nor, N. Murat, A. Mohamed, A. Gambôa","doi":"10.22452/ADUM.VOL19NO2.2","DOIUrl":"https://doi.org/10.22452/ADUM.VOL19NO2.2","url":null,"abstract":"Background: In Malaysia, training to enter dental nursing profession is only open to women. Ironically, there are no such gender restrictions on training for any other health related professions in Malaysia. Aim: Therefore this study aims to assess the perceptions of Malaysian Senior Dental Off icers (SDOs) towards the employability of male workers in the dental nursing profession and to compare findings from male and female SDOs. Methods: This cross sectional study was carried out on all SDOs in Ministry of Health, Malaysia, using a self-administered questionnaire. Descriptive statistics and a chi square test were used to address the study objectives. Results: Of the 112 participants, 78 SDOs returned the questionnaire, yielding a response rate of 70%. The majority of SDOs had positive perceptions of the employment of male dental nurses. It was indicated that gender is an important indicator for workforce development, and that the employment of both male and female dental nurses would enhance productivity. Almost 70% of SDOs perceived that the productivity of oral health service would be enhanced by having male and female dental nurses but 84.6% disagreed that male dental nurses would be more productive than female. Two thirds of SDOs disagreed that male dental nurses would increase satisfaction among male patients. About 64% of male SDOs disagreed that dental nursing profession is associated with female traits. There was no significant difference between perceptions by male and female SDOs for any statements. Conclusion: The majority of Malaysian SDOs have positive perceptions towards the employability of male dental nurses, and perceived dental nursing as a suitable profession for both genders. Training for the dental nursing profession should therefore be made available for men.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"169 1","pages":"51-55"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68629780","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

Microtomes and microtome knives 切片机和切片刀

Annals of dentistry Pub Date : 2012-12-31 DOI: 10.22452/ADUM.VOL19NO2.4

Faraz Mohammed, T. Arishiya, Shamaz Mohamed

{"title":"Microtomes and microtome knives","authors":"Faraz Mohammed, T. Arishiya, Shamaz Mohamed","doi":"10.22452/ADUM.VOL19NO2.4","DOIUrl":"https://doi.org/10.22452/ADUM.VOL19NO2.4","url":null,"abstract":"Microtome is a mechanical instrument used to cut biological specimens into very thin segments for microscopic examination. Biological specimens can be presented in many ways. But more often, these specimens are embedded in paraffin wax blocks and the commonest way of sectioning these specimens can be achieved by the microtome. The earliest form of the microtome enabled free hand sectioning of fresh or fixed material using a sharp razor. Modern microtomes are precision instruments designed to cut uniformly thin sections of a variety of materials for detailed microscopic examination. Central to the production of good sections is the microtome knife. Microtomy virtually begins and ends with a sharp, blemish-free cutting edge. The introduction of disposable blades has made easier the production of good quality, thin sections, but they are often unsatisfactory for sectioning harder tissues, especially bone. A sharp knife edge free from imperfections is essential for the production of good sections. Since many types of microtomes are commercially available in the market, choosing the right microtome is essential for producing the best result as required. A classification is proposed that unifies and organizes the various microtomes based on the mode of operation.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"19 1","pages":"43-50"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68629851","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: 5

Determinants of DNA yield and quality from different non-invasive sampling methods 不同非侵入性取样方法对DNA产量和质量的决定因素

Annals of dentistry Pub Date : 2012-12-31 DOI: 10.22452/ADUM.VOL19NO2.3

Y. F. Choon, L. P. Karen-Ng, S. Hassan, J. Marhazlinda, R. Zain

{"title":"Determinants of DNA yield and quality from different non-invasive sampling methods","authors":"Y. F. Choon, L. P. Karen-Ng, S. Hassan, J. Marhazlinda, R. Zain","doi":"10.22452/ADUM.VOL19NO2.3","DOIUrl":"https://doi.org/10.22452/ADUM.VOL19NO2.3","url":null,"abstract":"Aim: The purpose of this study was to determine the DNA yield and quality from different non-invasive sampling methods and to identify the method which gave the highest DNA yield. Method: Thirty-eight volunteers had been recruited in this study where blood, buccal cells and saliva were collected using various collection techniques. Buccal cells were collected by 1) cytobrush and 2) saline mouth rinsing or “swish”. Meanwhile saliva was collected by passive drooling method. Upon processing the white blood cell (WBC), buccal cells and saliva samples, DNA extraction was performed according to the manufacturer’s protocol. Quantification and quality (DNA ratio at A260/A280) of the extracted DNA were determined using NanoDropND-1000®. T-test was performed to compare means between DNA obtained from various collection methods. Results: DNA yields from buccal cells collected with cytobrush, “swish”. Saliva and WBC (mean ± SD) were (8.2 ± 5.9)ng/μl, (28.2 ± 14.9)ng/μl, (5.9 ± 9.5)ng/μl and (105.3 ± 75.0)ng/μl respectively. Meanwhile the mean DNA ratio at A260/A280 for cytobrush, “swish”, saliva and WBC were 2.3, 2.0, 1.7 and 1.8 respectively. Post hoc test with Bonferroni correction suggested that DNA yield from “swish” technique exhibited the least mean different as compared to the DNA extracted from WBC (p<0.05). There was no significant difference in the mean quality of the DNA extracted from WBC, saliva and buccal cells collected in these non-invasive methods (p=0.323). Conclusion: The “swish” technique of obtaining buccal cells yielded the highest amount of DNA and was of the quality of DNA extracted from blood sample.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"19 1","pages":"62-65"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68629823","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

EVALUATION OF GLOVE INTEGRITY AFTER MULTIPLE WASHES WITH DISINFECTANT 消毒剂多次洗涤后手套完整性的评价

Annals of dentistry Pub Date : 2012-12-31 DOI: 10.22452/ADUM.VOL19NO2.1

W. Chai, Z. Yusof, J. Marhazlinda, C. N. Shim, M. Y. Lee, P. Nambiar

{"title":"EVALUATION OF GLOVE INTEGRITY AFTER MULTIPLE WASHES WITH DISINFECTANT","authors":"W. Chai, Z. Yusof, J. Marhazlinda, C. N. Shim, M. Y. Lee, P. Nambiar","doi":"10.22452/ADUM.VOL19NO2.1","DOIUrl":"https://doi.org/10.22452/ADUM.VOL19NO2.1","url":null,"abstract":"Background: In an academic setting due to financial constrain, it is not uncommon during non-surgical procedures dental students and clinical supervisors wash their gloved hands with disinfectants in between patients or when touching on non-contaminated objects. Whether this practice could cause any deterioration of the glove and expose clinicians and patients to infectious micro-organisms was a concern. Aim: The aim of this study was to investigate the effect of multiple washes of gloved hands with a disinfectant on the integrity of the gloves. Methods: Three brands of commonly used gloves in a dental school were tested for leaks after multiple washes with a disinfectant. Thirty pairs of each type of gloves were subjected to 0, 1, 5, 10, 20 and 30 washes with a disinfectant solution at a 5-minute interval between each wash. After each washing cycle, the gloves were filled with 1L of water and hanged for 2 minutes to observe any signs of water leaks. Results: The results showed that the type of gloves and number of washes were significantly associated with the leakage rates (p<0.001). Washing of gloves for more than 5 times were at least 6 times higher to suffer from leakage (OR=6.23, 95% CI=2.14–18.08). Powdered gloves were almost 13 times higher to leak in all washes (OR=12.78, 95% CI= 4.40–37.14) and were almost 25 times more likely to leak when washed for more than 5 times (OR = 24.92, 95% CI = 5.79 – 107.21) when compared to the non-powdered gloves. Conclusion: The practice of washing gloved hands with a disinfectant deteriorates the integrity of the gloves.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"44 1","pages":"43-50"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68630245","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

MODIFIED VERTICAL MATTRESS SUTURING TECHNIQUE FOR FLAP APPROXIMATION AFTER RAMPING ? A MODIFIED RESECTIVE OSSEOUS SURGICAL PROCEDURE 坡道后皮瓣近似的改良垂直床垫缝合技术?一种改良的骨分离外科手术方法

Annals of dentistry Pub Date : 2012-06-29 DOI: 10.22452/ADUM.VOL19NO1.3

L. Chandran, S. Subashini

{"title":"MODIFIED VERTICAL MATTRESS SUTURING TECHNIQUE FOR FLAP APPROXIMATION AFTER RAMPING ? A MODIFIED RESECTIVE OSSEOUS SURGICAL PROCEDURE","authors":"L. Chandran, S. Subashini","doi":"10.22452/ADUM.VOL19NO1.3","DOIUrl":"https://doi.org/10.22452/ADUM.VOL19NO1.3","url":null,"abstract":"Purpose of this study is to evaluate the efficacy of modified vertical mattress suturing technique for flap approximation after ramping – a modif ication of resective osseous surgical procedure. Eighteen patients requiring periodontal surgery for pocket therapy were included in the study. The preoperative gingival and periodontal conditions were evaluated and intraoral radiographs were taken to identify the osseous defect. Shallow Craters present in the interdental regions towards the palatal surface were treated by ramping. On completion of the procedure, flaps were approximated for the final suturing. Suturing is done by a modification of vertical mattress suturing method using 4-0 silk sutures. The surgical sites were evaluated at the conclusion of the surgery, during suture removal and one month post-operative. The outcomes were evaluated in terms of patient’s comfort, surgical flap approximation, complications and post– operativerecessions. Complete closure of wound and good flap approximation was achieved in all cases immediately after the surgery. Except for three patients with delayed wound healing at suture removal, all other patients displayed rapid healing without any discomfort. No noticeable defect was seen in the healing of the interdental papilla on the buccal aspect. Embrasure spaces on the buccal surface were completely filled by interdental papilla during the one month review period. In patients undergoing resective osseous surgery by ramping that result in two different planes for flap approximation, the modified vertical mattress suturing technique proves to be a reliable and an effective method of suturing.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68629773","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

P53/MDM2 co-expression correlates with the tumour differentiation in oral squamous cell carcinoma - a retrospective study and a systematic review P53/MDM2共表达与口腔鳞状细胞癌的肿瘤分化相关——一项回顾性研究和系统综述

Annals of dentistry Pub Date : 2011-12-30 DOI: 10.22452/ADUM.VOL18NO1.2

Y. F. Choon, A. Ramanathan, H. Ali, W. M. N. Ghani, S. Cheong, R. Zain

{"title":"P53/MDM2 co-expression correlates with the tumour differentiation in oral squamous cell carcinoma - a retrospective study and a systematic review","authors":"Y. F. Choon, A. Ramanathan, H. Ali, W. M. N. Ghani, S. Cheong, R. Zain","doi":"10.22452/ADUM.VOL18NO1.2","DOIUrl":"https://doi.org/10.22452/ADUM.VOL18NO1.2","url":null,"abstract":"Background: MDM2 and p53 are involved in a negative feedback loop where p53 regulates MDM2 at the transcriptional level. MDM2, in turn, downregulates p53. This co-ordinated interaction between these proteins is set to play an important role in the regulation of cell cycle progression following DNA damage to cells. The over-expression of both p53 and MDM2 has been reported in various cancers. However there are only few studies discussing the co-expression of MDM2 with p53 in oral squamous cell carcinoma Aim: The purpose of this study was to determine the correlation of co-expression of p53, MDM2, and Ki-67 proteins with clinico-pathological factors in oral squamous cell carcinoma (OSCC) and to conduct a systematic review of the co-expression of p53/MDM2. Method: This is a retrospective descriptive study and a systematic review. Formalin-fixed paraff inembedded tissues from 45 OSCC cases were stained by immunohistochemistry (IHC) for p53, MDM2, and Ki-67 proteins. Results: Immuno-reactivity for p53, MDM2, and Ki-67 was seen in 75.6%, 97.8%, and 62.2% cases of OSCC respectively. The co-expression of p53 and MDM2 (p53/MDM2) was detected in 97.1%, however there was no signif icant correlation between p53 and MDM2 expression. Notably, p53/MDM2 coexpression was significantly associated with tumour differentiation (p-value = 0.045). The Ki-67LI was not signif icantly associated with neither MDM2 nor p53/MDM2 co-expression (p-value = 0.268, 0.916 respectively). Conclusion: The expression of MDM2 was not signif icantly associated with p53 expression suggesting that MDM2 expression is mediated by p53-independent pathways or mutated p53 could not induce the expression of MDM2 in this set of OSCCs. The only clinico-pathological parameter that correlates significantly with co-expression of p53/MDM2 is tumour differentiation where it is suggestive that the co-expression of these 2 proteins is indicative of aggressive tumour behavior.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"18 1","pages":"8-17"},"PeriodicalIF":0.0,"publicationDate":"2011-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68629425","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

A case of osteosarcoma of the maxilla - challenges in diagnosis and management 上颌骨肉瘤1例——诊断与治疗的挑战

Annals of dentistry Pub Date : 2011-12-30 DOI: 10.22452/ADUM.VOL18NO1.4

N. Rahim, N. Ngah, A. Ramanathan, T. George, S. M. Ismail

引用次数: 0

Effects of tobacco use on oral health - an overview 烟草使用对口腔健康的影响综述

Annals of dentistry Pub Date : 2011-12-30 DOI: 10.22452/ADUM.VOL18NO1.3

K. Awan

{"title":"Effects of tobacco use on oral health - an overview","authors":"K. Awan","doi":"10.22452/ADUM.VOL18NO1.3","DOIUrl":"https://doi.org/10.22452/ADUM.VOL18NO1.3","url":null,"abstract":"Tobacco use is linked with many serious illnesses, such as cancer, cardiopulmonary diseases, as well as with many health problems. Every year, the use of tobacco products causes a heavy toll of deaths and severe human disease worldwide. One of the many health problems linked to tobacco use is its detrimentalimpact on oral health. Tobacco causes a whole series of oral health problems, ranging from life-threatening (precancerous changes leading to oral cancer) andserious (periodontal disease, teeth decay) to social (bad breath). Tobacco is consumed through the mouth in a variety of forms, varied from smoked tobacco tosmokeless tobacco chewing on itself or combined with areca nut. All these forms of tobacco have damaging effects on the oral health. The most significantpreventive measure to prevent the oral health problems caused by tobacco use is to stop using tobacco products. The risk of developing oral cancer drops rapidly when a smoker ceases tobacco use. After ten years of not using tobacco, an ex-smoker/user’s risk of oral cancers is about the same as that for someone who has never smoked. To stop using tobacco products is not an easy task. Fortunately, there are a number of therapies available to assist in quitting of tobacco. It is important to remember that, while it will be difficult, ceasing to use tobacco has immediate health benefits, including increased life expectancy and reduced risk of tobacco related diseases and conditions.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"18 1","pages":"18-23"},"PeriodicalIF":0.0,"publicationDate":"2011-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68629449","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: 12

Wear of rotary instruments: a pilot study 旋转仪器的磨损:初步研究

Annals of dentistry Pub Date : 2011-12-30 DOI: 10.22452/ADUM.VOL18NO1.1

A. A. Aziz, N. Kasim, C. Ramasindarum, M. Yusof, M. Paiizi, R. Ahmad

{"title":"Wear of rotary instruments: a pilot study","authors":"A. A. Aziz, N. Kasim, C. Ramasindarum, M. Yusof, M. Paiizi, R. Ahmad","doi":"10.22452/ADUM.VOL18NO1.1","DOIUrl":"https://doi.org/10.22452/ADUM.VOL18NO1.1","url":null,"abstract":"The aim of this study was to assess the wear of tungsten carbide burs and round rotary diamond instruments through measurements of rake angle and visual observations respectively under a field emission scanning electron microscope. Sixty short and long head pear-shaped tungsten carbide burs and 18 round rotary diamond instruments that had been used to complete 5 and > 10 cavity preparations (n=10/group) were selected from the 3rd and 4th year dental students, Faculty of Dentistry, University of Malaya. There were two control groups consisting of long and short tungsten carbide burs of ten each. Two-way ANOVA was used to analyse the rake angle data. The data from the two control groups were collectively analysed following multiple paired t-test (p>.05) which showed no significant difference between the two types of tungsten carbide bur (short and long head). The mean rake angle of the control group was significantly higher (p 5 and > 10 cavity preparation groups. The rake angle of the > 10 cavity preparation group was significantly lower than the other two test groups (p 5 and > 10 cavity preparation groups showed blunt diamond particles. In conclusion, wear of tungsten carbide burs and round rotary diamond instruments were evident after repeated use. Wear was more pronounced when instruments were used to prepare more than ten cavities.","PeriodicalId":75515,"journal":{"name":"Annals of dentistry","volume":"18 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2011-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68629663","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

Granular cells in a benign parotid gland tumour: an attempt to understand its probable histogenesis 良性腮腺肿瘤中的颗粒细胞:试图了解其可能的组织发生

Annals of dentistry Pub Date : 2011-12-01 DOI: 10.22452/ADUM.VOL18NO1.5

T. George, R. Zain, M. T. Abraham

引用次数: 0