321 research outputs found

    Evaluation of Speech and Effect of Customization of Palatal Rugae in Complete Denture Rehabilitation

    Get PDF
    INTRODUCTION : Speech has always been the most significant medium for the transmission of ideas and throughout the centuries it has been one of the main forces for the human progress. Speech is a critical activity of the stomatognathic system, which utilizes the oral cavity as an instrument. A significant part of speech articulation happens inside the oral cavity and any modification of the structures in that will unfavorably influence speech proportionate to the area and magnitude of change. Inability to form the palatal contours to suit ordinary tongue contact as a rule brings about poor speech. Therefore, for the success or coming to nothing of dental rehabilitation, speech production quality is a vital criterion. AIM : The aim of this study was to assess and correlate the speech pronunciation (linguo-palatal sounds) of subjects with customized palatine rugae duplicated on upper complete denture and subjects with conventional upper complete denture and subjects with the natural dentition upto a duration of 4 weeks after denture insertion. MATERIALS AND METHODOLOGY : A total of 18 subjects (12 completely edentulous and 6 dentulous) 45-60 years of age were selected for this study. These subjects further divided into 3 groups, Control group: 6 subjects, with natural complete dentition. Study group: 12 subjects, who were completely edentulous. Group A: were rehabilitated with conventional complete dentures with the palatine rugae duplicated on maxillary dentures. Group B: were rehabilitated with duplicated complete dentures without the palatine rugae duplicated on maxillary dentures. Tamil Articulation Test [(USHA.D (1986)] was regulated to each subject and recorded. A total of 3 Linguo-palatal phonemes in Tamil /d/,/th/,/ja/ were selected for the study. Each recording was taken at 4 stages.The samples with target phonemes were evaluated for Acoustic analysis. RESULTS : All recordings were evaluated and comparison was done using one-way Anova followed by Tukey’s post hoc test. At stage 1, subjects without the dentures shows statistically significant decrease in almost all the spectral and temporal parameters as compared to control group. At stage 2, Immediately after denture insertion mostly all the parameters shows improvement from stage 1, specially with the group A as compared to group B but compared to group C both A & B shows statistically significant decrease. At stage 3, denture with replicated palatal rugae shows less adaptation duration to the new dentures as compared to the conventional dentures. At stage 4, few parameters of group B still shows significance with the group A and C, like spectral peak energy, frication and affrication duration. CONCLUSION : It is suggested to duplicate the palatal rugae in complete denture in light of the fact that the articulation of linguo palatal sounds of complete denture with rugae replication was better than the conventional complete denture without rugae replication

    A scientific and clinical evaluation of dental implants placed in compromised bone volume

    Get PDF

    Interior sound quality evaluation model of heavy commercial vehicles

    Get PDF
    Based on back-propagation (BP) artificial neural network (ANN) technique, interior sound quality evaluation model of heavy commercial vehicles(HCV) was designed in this paper. According to the standard named GB/T18697-2002, firstly, the interior noises of five different types of HCV under different working conditions were measured and collected. Secondly, the subjective evaluation of sound quality was estimated by jury tests following the magnitude estimation. Meanwhile, seven objective psycho-acoustical parameters of these samples were calculated. Using the objective and subjective evaluation results, furthermore, the sound quality prediction model of HCV was developed based on BP ANN. Thirdly, this model was proved by some verification tests. The results suggest that the proposed model has ability of high precision and good generalization. And lastly, the sound quality prediction model of HCV could be used to determine the impact weight of measuring objective evaluation parameters contributing to the results of subjective evaluation. The results played a significant guiding role in both HCV and other areas for sound quality evaluation and analysis

    Classic Reviews from Past Comprehensive Review Courses in Prosthodontics

    Full text link
    https://deepblue.lib.umich.edu/bitstream/2027.42/154049/1/classic_reviews-vol1.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154049/2/classic_reviews-vol2.pdfDescription of classic_reviews-vol1.pdf : Volume 1Description of classic_reviews-vol2.pdf : Volume

    Virginia Dental Journal (Vol. 68, no. 2, 1991)

    Get PDF

    The importance of ancillary insurance benefits by members of Medicare risk contract insurance plan

    Full text link
    Thesis (D.Sc.D.)--Boston University, Henry M. Goldman School of Dental Medicine, 2000.Includes bibliographical references (leaves 63-75)

    Interior sound quality evaluation model of heavy commercial vehicles

    Get PDF
    Based on back-propagation (BP) artificial neural network (ANN) technique, interior sound quality evaluation model of heavy commercial vehicles(HCV) was designed in this paper. According to the standard named GB/T18697-2002, firstly, the interior noises of five different types of HCV under different working conditions were measured and collected. Secondly, the subjective evaluation of sound quality was estimated by jury tests following the magnitude estimation. Meanwhile, seven objective psycho-acoustical parameters of these samples were calculated. Using the objective and subjective evaluation results, furthermore, the sound quality prediction model of HCV was developed based on BP ANN. Thirdly, this model was proved by some verification tests. The results suggest that the proposed model has ability of high precision and good generalization. And lastly, the sound quality prediction model of HCV could be used to determine the impact weight of measuring objective evaluation parameters contributing to the results of subjective evaluation. The results played a significant guiding role in both HCV and other areas for sound quality evaluation and analysis

    Interior sound quality evaluation model of heavy commercial vehicles

    Get PDF
    Based on back-propagation (BP) artificial neural network (ANN) technique, interior sound quality evaluation model of heavy commercial vehicles(HCV) was designed in this paper. According to the standard named GB/T18697-2002, firstly, the interior noises of five different types of HCV under different working conditions were measured and collected. Secondly, the subjective evaluation of sound quality was estimated by jury tests following the magnitude estimation. Meanwhile, seven objective psycho-acoustical parameters of these samples were calculated. Using the objective and subjective evaluation results, furthermore, the sound quality prediction model of HCV was developed based on BP ANN. Thirdly, this model was proved by some verification tests. The results suggest that the proposed model has ability of high precision and good generalization. And lastly, the sound quality prediction model of HCV could be used to determine the impact weight of measuring objective evaluation parameters contributing to the results of subjective evaluation. The results played a significant guiding role in both HCV and other areas for sound quality evaluation and analysis

    Patients' experiences and clinicians' views of dental implant treatment : a qualitative study

    Get PDF
    PhD ThesisImplants have a significant clinical research evidence base which supports positive treatment outcomes for patients; however, the growing provision of implant restoration has been also accompanied by a rising number of complaints relating to dissatisfaction with treatment outcomes (RCS, 2014). This thesis presents the findings of qualitative studies which set out to investigate, and subsequently understand, patients’ experiences and clinicians’ views of dental implant provision. Semi-structured interviews with patients at different stages of dental implant treatment (n=38 interviews) and secondary care implant clinicians (n=8) were undertaken. Data collection and analysis followed the principles of thematic analysis (Braun and Clarke, 2006). While implant restorations are seen as a durable tooth substitute, this research highlighted how patients saw implants as a ‘cure’ for tooth loss. Inherent strength, stability and permanency from the material ‘titanium’; the position ‘rooted within the bone’ and the uniqueness of the technique ‘recent technology’ all contributed to this view. As a result, the direct and long-term potential of implant prosthesis was often misunderstood by inadequately recognising the resources required for regular professional and home care of the implant restoration to ensure longevity. Patients also overestimated the unpleasantness of implant surgery and experienced unanticipated challenges during healing. This was accompanied by uncertainty about maintaining oral hygiene, which continued with both the transitional and final restoration. Clinicians experienced difficulty in communicating information to patients who held high expectations relating to implant provision. Additionally, clinicians’ obligation to negotiate patients’ treatment needs and prioritise between patients places some restrictions on fully shared decision making. Several suggestions were made by clinicians and patients to improve the experience of the implant treatment pathway. These included expanding the role of the clinical support team, using technology and ensuring effective, targeted and timely giving of information according to the patient’s individual circumstances and their stage of treatment.Libyan high education ministry, Libya, and the University of Garyounis, Benghazi

    The effects of technology on literacy(s)

    Get PDF
    One of the challenges when measuring the effects of technology on literacy(s) is finding a control group where technology; does not play a major role in the culture. The Amish successfully live in a Technocracy where mechanical/electronic tools are used only when absolutely necessary; the Amish are not dependent on them for survival. The crux of the Amish philosophy is humility, serving the community and serving God. Ironically, they have suffered tremendous repercussions for adopting a wholesome, selfless lifestyle which is contrary to most popular world views, regardless of religious or spiritual views --Purpose, page 40
    • …
    corecore