Online Journal of Dentistry & Oral Health最新文献

{"title":"Fundamentals of Implant Overdenture-Overview","authors":"Hariharan Ramakrishnan","doi":"10.33552/OJDOH.2021.04.000587","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000587","url":null,"abstract":"Edentulism is a condition where there is loss of teeth, that changes the lifestyle of a human and results in various systemic changes. Preservation of remaining structures are important and implant overdentures are a boon not only in replacing the lost oral structures but also restores esthetics and functions. This aids in enhancing the nutritional intake and normalise the quality of life of the patient. After the loss of natural teeth restoring the oral structures with the support of implants is both an art and science, which will be described in this article.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115198248","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":"How Can We Handle Pandemic in the Dentistry and Prosthetic Clinic? Recommendations and New Approaches","authors":"Reem Abdulrahim","doi":"10.33552/OJDOH.2021.04.000586","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000586","url":null,"abstract":"To display an overall review of present literature concerning coronavirus disease and dentistry as it is a matter of global concern, necessitate an alteration in dental and laboratory fields; and suggested sterilization schedules in current issue. Many recommendations have been suggested to handle many prosthodontic measures and effects of currently pandemic on prosthodontic applications, research, and learning. Comprehensive electronic search of literature related to Covid-19 and dentistry was inspected including different database articles. Various guidelines recommended by several international and national institutions and organizations such as World Health organization (WHO), and different Prosthodontics societies were included to gather the required information pertaining to possible source of spread of Covid-19 in Prosthodontics order regarding patient management and clinical strategies. The Covid-19 initiates the need to arrange a balanced program during protecting the dental professionals and treating patients at the same time. Strict application of guidelines and disinfection protocols should be evaluated with risk/advantages ratio assessment to conflict such un-matched pandemic disease.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132323490","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":"A Study of Prognostic Significance of Perineural Invasion in Oral Squamous Cell Carcinoma","authors":"Zubair Durrani","doi":"10.33552/OJDOH.2021.04.000588","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000588","url":null,"abstract":"Objective: To measure the frequency of perineural invasion in oral squamous cell carcinoma, to correlate its presence with various variables and to assess its impact upon prognosis. Design: A retrospective analytical study was planned. Place and Duration of study: Patients were identified with oral squamous cell carcinoma who had underwent surgical excision over the past 7 years in Rehman Medical institute. The duration of the study was 6 months. Methodology: Pathology reports were collected; and based upon the presence or absence of PNI, Patients were divided in to two groups. The group with PNI were analyzed for a set of associations and then compared with other group for comparison. PNI frequency was correlated with age, gender, site, size and differentiation of tumor. Presence of PNI, number of tumor foci along the perineural region and the size of nerve involved were then correlated with presence or absence with nodal disease and frequency of recurrence in these cases. Results were compiled and statistically analyzed using chi square test. Results: Total number of Patients included in study were 59. PNI was found present in 13 (22.03%) patients. PNI was found mainly in middle age group. Gender distribution: male-7, female-6 (p=0.454); Site distribution; Tongue carcinoma-6, other sites-7 (p=0.618); Size: T3-10, T1-3 (p=0.330); Differentiation: well differentiated-10, Moderate Differentiated-3 (p=0.197). Association of nodal status with PNI found positive in 6 patients (p=0.000). Association of recurrence with PNI was also found positive in 6 patients (p=0.001). Number of foci of perineural invasions (1 focus-7, 11 foci-1, 3 foci-3, 4 foci-1, 5 foci-1) association with recurrence (6 cases) p=0.535 and lymph node metastasis (6 cases) p=0.490. Nerve size involved by PNI (<1mm-3, >1mm-10) association with either lymph node metastasis (6) p=0.672 or recurrence in the neck (6) p=0.417. Conclusion: The frequency of PNI was 22.03%. Statistically, no significant association was found between PNI and age, gender, site, grade of tumor and size of the tumor. Significant Association was found in this study between occurrence of PNI with Lymph Node metastasis and Neck Recurrence. No Significant Association was found between number of foci of Perineural invasions or the size of the nerve involved with either lymph node metastasis or recurrence.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122063627","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":"Effect of APF Treatment Of CAD/CAM Ceramics on Bond Strength","authors":"T. Maseki","doi":"10.33552/OJDOH.2021.04.000585","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000585","url":null,"abstract":"Hydrofluoric acid treatment is frequently used for the surface treatment of ceramic restoratives containing silica. However, hydrofluoric acid is extremely toxic and requires great care when used in chair-side situations. Acidulated phosphate fluoride (APF) solution is highly safe and widely used for caries prevention in both children and adults by application to the teeth. Use of a safer alternative to hydrofluoric acid is desirable, so this study aimed to investigate the effects of surface treatment with APF solution combined with heat treatment on bonding to CAD/CAM ceramics. Specimens of ceramics were distributed into five groups: Group A30, treated by 2% APF for 30 min; Group AH1, treated by APF with heat treatment (at 100⁰C for 1 min); Group AH5, treated by APF with heat treatment (at 100⁰C for 5min); Group HF, treated with 8% hydrofluoric acid, and Group CO, without etching treatment as a control. After treatment, specimens were bonded with dual-cured resin cement system. Tensile bond strength was measured after 24h. Mean bond strengths were as follows: Group CO, 11.03 MPa; Group A30, 12.96 MPa; Group AH1, 14.19 MPa; Group AH5, 17.15 MPa; and Group HF, 17.50 MPa. APF treatment combined with additional heat treatment offered effective bonding to CAD/CAM ceramics","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132203877","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":"Natural Teeth-A Novel Biomaterial for Bone Regenration","authors":"N. Kaur","doi":"10.33552/OJDOH.2021.04.000584","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000584","url":null,"abstract":"Nowadays, various bone graft materials are developed due to advanced bio graft material development technologies; as a result, dento alveolar surgery can handle difficult osseous defects with various methods in the placement of implant, periodontal surgery, and maxillofacial surgery. The auto-tooth bone graft material is a system that treats patients by manufacturing bone graft material from their own extracted teeth. Auto-tooth bone graft material is useful as it supports excellent bone regeneration capacity and minimizes the possibility of foreign body reaction, genetic diseases and eliminating the risk of an immune reaction that may lead to the rejection. The emergence of autogenous tooth bone graft based on the principles of Endogenous Regenerative Technology (ERT) promotes not only the natural healing process but also reconstruction of lost tissues by body’s inherent capabilities. It is therefore, difficult to obtain bone graft material with the advantages of autogenous bone but not its disadvantages. Thus, the search for newer, near ideal biomaterials and procedures as well as recent application of tooth as a bone graft material may continue to be a challenge in the field of regenerative periodontics.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123629170","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":"Dental Antibiotic Prophylaxis and Prosthetic Joint Infections: A Narrative Review","authors":"N. Jayalakshmi","doi":"10.33552/OJDOH.2021.04.000583","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000583","url":null,"abstract":"Prosthetic joint infection (PJI) is the 3rd most common cause of revision in total hip arthroplasty (THA) and the most common cause of revision in total knee arthroplasty (TKA). It is associated with high costs/economic burden and mortality. The most common cause of late PJI is due to haematogenous seedling of bacteria into the joint from remote site infection (RSI). Oral flora constitutes 6-13% of burden in PJI. Dental interventions in patients who have undergone joint replacement surgery (JRS) are at increased risk of PJI due to bacteraemia. Dental antibiotic prophylaxes (DAP) are known to reduce this bacteraemia which in-turn may reduce the incidence of PJI. Significant controversy exists Re: the role and use of DAP in preventing PJI. This narrative review attempts to answer key questions surrounding its use based on extensive literature review in English language over past four decades. The existing evidence is at best low and of poor quality with few comparative clinical trials that had assessed the incidence of PJI with DAP. Several systematic reviews have concluded that the existing evidence at best is inconclusive. The best existing guideline is the updated 2017 American Academy of Orthopaedic Surgeons (AAOS)-American Dental Association (ADA): Appropriate Use Criteria (AUC) that recommends shared-decision making taking individual risk factors into consideration with patients’ input. DAP are recommended only in at-risk patients and is neither cost-effective nor recommended for all cases. The risk of PJI is highest in the first two years of JRS. Regular 6-12monthly dental visits, good oral hygiene and collaboration between Surgeons and Dentists facilitate providing a high quality of care thus minimizing the incidence of PJIs.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114919079","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":"Clinical Effects of Commiphora Myrrha in Oral and Dental Medicine, A Mini Review","authors":"A. Almaghlouth","doi":"10.33552/OJDOH.2021.04.000582","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000582","url":null,"abstract":"The United States Department of Agriculture USDA recognizes Commiphora myrrha, named myrrh, African myrrh, herbal myrrh, Somali myrrh, or gum myrrh as a tree in the Burseraceous family [1]. It is one of the primary trees used in the production of myrrh, a resin made from dried tree sap. According to the world agroforestry center, the tree exists in the middle east (Oman, Yemen) and in some African countries (Djibouti, Ethiopia, Somalia, Northeast Kenya). In Arabic, it is named ‘mur’, which means bitter. It is the gum of the myrrh tree. Its oil is called oleoresin. It famously comes from Mecca, so it is called ‘Mur Makki’ [2]. According to Tonkal, Morsy [3], the genus Commiphora is composed of more than 200 species, and intimidated as a natural drug to treat pain, skin infections, inflammatory conditions, diarrhea, and periodontal diseases [3]. Traditional practice and evidence-based research have supported that these characteristics are directly attributable to terpenoids (especially furanosesquiterpenes), the active compounds present in myrrh essential oil [4].","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117054460","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":"Effect of Height Differences on the Retention and Wear Behaviour of Ball Attachment System Over Mandibular Dual Implants","authors":"J. Vidhya","doi":"10.33552/OJDOH.2021.04.000581","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000581","url":null,"abstract":"Purpose of the study: To comparatively evaluate the effect of height differences on the retention and wear behaviour of ball attachment system over mandibular dual implants. Materials and methods: Two groups of twenty samples each containing polymerised master block of dual implant analogues at same height in Group 1 and dual implant analogues of different heights in Group 2 were fabricated along with ball abutments, nylon cap and metal housing. Qualitative analysis of samples for wear factor were carried out using stereomicroscope and quantitative analysis of retention force at baseline, 360, 720, 1080, 1440 insertion-removal cycles were determined using Universal testing machine. statistical analysis were carried out using independent ‘t’ test and paired sample ‘t’ test. Results: Group I test samples, the sample mean obtained at baseline, 360, 720,1080, and 1440 cycles were 24.73N, 23.49N, 22.46N, 21.07N, & 19.28N respectively. Group II test samples, the sample mean obtained at baseline, 360, 720,1080 & 1440 cycles were 27.13N 25.80N, 24.16N, 22.73N and 21.85N respectively. comparison of the mean retention force of the test samples at baseline, 360 (3 months), 720 (6 months), 1080 (9 months) and after 1440 (12months) insertion-removal cycles within Group 1 and Group II using Paired sample ‘t’-test was statistically significant at all levels. Conclusion: Retention force was found to be higher on dual implants placed at different heights in mandibular anterior region and is statistically significant and corroborated by the Lesser surface deformations of attachment system.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129274204","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":"Prosthodontic Rehabilitation of Missing Molar using Friction Fit Zirconia Crown Over Dual One Piece Implants-Clinical Report and I Year Follow Up","authors":"Hariharan Ramakrishnan","doi":"10.33552/OJDOH.2021.04.000580","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000580","url":null,"abstract":"The present patient report describes a missing mandibular molar rehabilitated by two one piece narrow diameter dental implants. Although the gold standard treatment is to place a regular diameter implant, unfortunately due to horizontal bone resorption, this option is not possible without lateral bone augmentation. In this situation narrow diameter implants are a viable alternative. immediate provisional crown is provided after implant placement and three months latter, replaced with partially transparent monolithic friction frit cement free zirconia crown. Follow up til the end of one year revealed healthy hard and soft tissues around implants.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133059641","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":"The Relationship between Rehabilitation of Severe Early Childhood Caries and Well-Being in 5 Years Old Patient, A Case Report","authors":"Chaza Kouchaji","doi":"10.33552/OJDOH.2021.04.000579","DOIUrl":"https://doi.org/10.33552/OJDOH.2021.04.000579","url":null,"abstract":"Early Childhood Caries (ECC) is a public health problem that continues to affect infants and preschool children worldwide, and severe destruction of primary teeth due to caries is a common occurrence in children under 6-years-old. The purpose of this report was to present a case of a 5-year-old patient with severe ECC and the effect of mouth rehabilitation on child’s lifestyle. In this case a comprehensive treatment plan was followed, including many types of procedures to achieve functional requirements which have important role in nutrition and proper development in this age.","PeriodicalId":361768,"journal":{"name":"Online Journal of Dentistry & Oral Health","volume":"85 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126062401","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}