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Using a Simple Chair-Side Copy Denture Technique in the AvaDent Digital Denture Process: A Case Report and Review

Open Journal of Stomatology 2018年第7期8卷 241-249页

作者： amit paryag Reisha Rafeek Ashley Meighan School of Dentistry Faculty of Medical Sciences The University of the West Indies St. Augustine Trinidad & Tobago

Introduction: Several techniques have been described by which a pair of dentures may be replicated. Case Report: The method described in this paper used materials readily available in a private practice to generate a pair of duplicate dentures for a 74-year-old Black male, which captured all of the features of the patients’ existing pair. These were modified chair-side and used to capture vital information on fit, occlusion and aesthetics, forming a template which was transferred to the laboratory and used to generate new dentures via the traditional laboratory process. The same template was also used to generate a pair of “AvaDent Digital Dentures” by digital scanning and production of a digital denture template for try and then fabrication of the digital denture. Conclusion: The results of this pilot study show that this simple chair-side method of fabricating duplicate dentures can be incorporated successfully into the AvaDent Digital Denture fabrication process to generate a pair of dentures with comparability if not superior fit and aesthetics to a pair fabricated from the same template via the traditional laboratory process.

关键词： Digital Dentures Duplicate Chair-Side Complete Dentures

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Mercury Pollution from Dental Amalgam Waste in Trinidad and Tobago

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Journal of Water Resource and Protection 2010年第8期2卷 762-769页

作者： amit paryag Amrita S. paryag Reisha N. Rafeek Angelus Pilgrim 不详

Aim: To assess the knowledge and attitudes of dental practitioners regarding the disposal of amalgam waste from dental practices and to assess the level of mercury released via dental amalgam waste into the environment in Trinidad and Tobago. Method: A questionnaire on dental wastewater discharge and amalgam waste disposal was administered to dental practitioners in Trinidad and Tobago. Levels of mercury in samples of wastewater and solid deposits obtained during removal of 160 amalgam fillings, were measured using Atomic Absorption Spectrometry. The numbers of amalgam fillings placed and removed over a monthly period from a random sample of dental practices in Trinidad and Tobago were also obtained via the questionnaires. The amount of mercury entering the environment from dental practices was estimated from these data. Results: Twenty per cent responded to the questionnaire. Thirty per cent of respondents used elemental mercury (from a dispenser), while 74.4% used pre-capsulated mercury for preparing amalgam fillings. Seventy nine per cent used chair-side traps and filters but none had amalgam separators in their surgery. Methods used to dispose of amalgam waste included disposal in the trash (48.8%), washing down the sink (39.5%);and as hazardous waste (37.2%). A mean concentration of 0.0759 ppm (or mg/L) mercury was found in filtrate from the wastewater samples. A total concentration of 3.4 g mercury per dentist per day was found to be released into the environment via dental amalgam waste in Trinidad and Tobago. Conclusion: Best management practices for disposal of dental amalgam waste are not generally followed. At 3.4 gms per day per dentist, the level of mercury released via dental amalgam waste into the environment in Trinidad and Tobago may be too high. Dental practitioners require education on the management of dental amalgam waste and national legislation to protect the environment from this source of mercury may be required.

关键词： Dental Amalgam Mercury Pollution

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Mandibular Anterior Immediate Denture Using Visible Light Cure Acrylic

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Materials Sciences and Applications 2015年第11期6卷 1054-1060页

作者： amit A. paryag Paul Seerattan Reisha N. Reisha N. Melissa S. Mankee Fixed & Removable Prosthodontics School of Dentistry The University of the West Indies Mount Hope Trinidad & Tobago Removable Prosthodontics School of Dentistry The University of the West Indies Mount Hope Trinidad & Tobago Restorative Dentistry School of Dentistry The University of the West Indies Mount Hope Trinidad & Tobago General Practitioner D’Abadie Trinidad & Tobago

Management of a 51-year-old female of Afro Trinidadian descent required removal mandibular incisors. This patient’s periodontal condition and her inability to afford pre-prosthetic surgery, bone grafting or even a fixed partial denture for replacement of the proposed units after extraction necessitated alternative treatment options to implants. Her profession required interaction with the public and as such an immediate replacement was essential. Impressions were taken and an immediate partial denture fabricated using a visible light cure acrylic. The mobile teeth were extracted and the denture delivered to the patient with minimal adjustments. The patient was monitored for three months while healing of the extraction site occurred and her periodontal condition was treated. Inability to afford definitive treatment for one year required the denture be maintained for that period. Follow up showed that the aesthetics, function and structural integrity of the denture had not been compromised.

关键词： Visible Light Cure Acrylic Removable Immediate Dentures

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