Dental Technology Research Articles

Comparison of intraoral and extraoral scanners on the accuracy of digital model articulation.

to determine the accuracy of model articulation generated by extraoral and intraoral scanners. One extraoral scanner with a wax (EOW) or vinyl polysiloxane bite registration (EOVPS), and three intraoral digital scanners utilizing confocal static (IOCS), confocal continuous (IOCC), and blue LED light technologies (IOLED) were used. On each scanned image (n = 25 per group), measurements between the maxillary and mandibular molars and canines were performed and then compared to the gold standard values. A deviation of ± 0.5 mm from the gold standard value was considered acceptable. The significance level was kept at 0.05. IOCS and IOCC were accurate for all six interarch measurements. IOLED and EOVPS groups produced the next most accurate articulation of the digital models. EOW group resulted in the least accurate articulation. Also, of the software platforms used, the OrthoCAD™ was found to be the most accurate system for making measurements on digital casts. Only the scanners with the confocal imaging technology produced accurately articulated models. Differences between the scanners may be related to measurement errors inherent to the technologies employed and the software systems used to process the images.

Fuzzy gold standards: Approaches to handling an imperfect reference standard

There are many challenging aspects to the design, conduct and interpretation of a diagnostic test accuracy study. Given the utilisation of digital technology in dentistry the issues and complexities of how these new technologies can be compared to potentially ‘fuzzy gold standards’ needs to be addressed. This narrative aims to provide the reader with a brief review of the nature of such studies, and in particular to introduce the reader to issues in the choice and use of clinical reference standards. Potential solutions to problems of differential verification and the use of imperfect reference standards will be provided.

Utilising Digital Dentistry for the Management of Patients with Hypodontia of Lateral Incisors

Management of missing maxillary lateral incisors can involve joint restorative and orthodontic treatment planning and intervention. Digital dental technologies are contributing to better communication and precision of planning both between clinicians and patients and within specialists. This paper outlines the ways in which digital dentistry is facilitating this process with a focus on restoratively-driven treatment planning and delivery.

CAD/CAM and 3D-printing Applications for Alveolar Ridge Augmentation

CAD/CAM and 3D-printing are emerging manufacturing technologies in dentistry. In the field of alveolar ridge augmentation, graft customization utilizing these technologies can result in significant reduction of surgical time. A review of the literature on materials, techniques and applications of CAD/CAM and 3D-printing available for alveolar ridge augmentation was performed. CAD/CAM applications for milling of customized block grafts of allogeneic, xenogeneic, and alloplastic origins have been reported, and currently only limited products are commercially available. 3D-printing applications are limited to alloplastic graft materials and containment shells, and have been mostly used in animal studies for optimizing biomaterials' properties. While current data support the potential use of CAD/CAM and 3D-printing for graft customization for alveolar ridge augmentation procedures, additional research is needed on predictability and long-term stability of the grafted sites.

Development of treatment protocol with selective laser melted fixed partial dentures

Purpose: of the present paper is to offer treatment protocol with fixed partial dentures, produced by selective laser melting, including clinical and laboratory parts. Design/methodology/approach: The treatment protocols with selective laser melted fixed partial dentures was developed on the basis of literature survey and our previous research about accuracy and mechanical properties of dental bridges, manufactured by additive technologies. Findings: The treatment protocol with fixed partial dentures, produced by selective laser melting, consisting of clinical and laboratory parts, was developed. The treatment procedures with FPD made by SLM were classified as semi-digital when working with extraoral scanner and fully-digital – with intraoral scanner. Research limitations/implications: The introduction of the proposed treatment protocol into the clinical and laboratory practice would lead to a systematic approach and working optimization for prosthodontists and dental technicians when using selective laser melting. Practical implications: Due to the elimination of multiple manual manipulations and technological operations, treatment protocols with FPD, produced by SLM, ensure higher accuracy and quality of the constructions and shorter time for their manufacturing compared to the conventional procedure. Originality/value: The developed clinical and laboratory protocols for the treatment and manufacturing of FPD through SLM clearly show the benefits of the new technology in dentistry and dental technician field.

Dental nurse becomes dental technology apprentice

Dental nurse becomes dental technology apprentice

The Relationship between Relationship Investment, Relationship Quality, and Attachment Styles

This study examines the impact of relationship investment on relationship quality in dental technology. In addition, it explores the moderating effects between relationship investment and relationship quality by using customer attachment to different dentists' styles. The study collects 202 questionnaires from dentists in Taiwan. This study uses hierarchy regression analysis to test hypotheses. The empirical results show that 1) relationship investment has a significantly positive effect on relationship quality; and 2) that customer attachment has a moderating effect on relationship investment and relationship quality. Both attachment anxiety and attachment avoidance have significantly negative effects on relationship quality. However, only attachment anxiety has a significantly moderating effect on relationship investment and relationship quality.
 
 Keywords: Relationship Investment, Relationship Quality, Dental Technology, Attachment Style
 
 To cite this document: Hui-Chen Chang, Lin-Ju Cheng, Yi-Ching Tsai, and Hung-Chun Lai, "The Relationship between Relationship Investment, Relationship Quality, and Attachment Styles", Contemporary Management Research, Vol.14, No.1, pp. 3-20, 2018.
 
 Permanent link to this document:
 http://dx.doi.org/10.7903/cmr.18017

Revisited the classifier of the main dental treatment-diagnostic activities and technologies

Starting from 1988 to the present time, dentists’ labor accounting is carried out by measuring the volumes of their work, expressed in standard units of labour input. This system of accounting is aimed at providing maximum assistance during one visit, reducing unproductive time, increasing preventive work.
 The article deals with the organization and payment for primary dental care provided on an outpatient basis within the framework of the compulsory health insurance program. An assessment is made of the conformity of the "Classifier of basic health services for primary health specialized dental care, provided in outpatient settings, expressed in standard units of labour input (SULI)» to the standard time spent per 1 SULI, taking into account the new standard indicators.
 Scale of cost units as per 1 SULI was defined on the basics of the most common dental practice of the day: a five-day 33-hour work week of a dentist-therapist. On the average, the standard time spent on 1 SULI is 9.9 minutes. This proves that the normative time spent on 1 SULI corresponds to the indices of the “Classifier…”, and that it is defined regarding the time norms, spent by a dentist-therapist on 1 visit (44 minutes).

Effects of denture adhesive on the retention of milled and heat-activated maxillary denture bases: A clinical study

Statement of problemClinical studies have identified advantages of digital complete denture technology including patient satisfaction, improved mastication, increased retention, and technique efficiency. However, studies that focus on the effect of denture adhesive on the retention of milled and heat-activated denture bases are lacking. PurposeThe purpose of this clinical study was to evaluate the effectiveness of denture adhesive on the retention of milled and heat-activated denture bases. Material and methodsTwenty participants with complete maxillary edentulism were selected for this study (11 men and 9 women). Definitive impressions were obtained and scanned (iSeries impression scanner; Dental Wings). Digital data were sent to Global Dental Science for the fabrication of computer-aided design and computer-aided manufacturing (CAD-CAM) milled denture bases (MB condition). The physical impressions were poured in stone to produce casts for the fabrication of heat-activated acrylic resin denture bases (HB condition). A portable clinical motorized test stand and advance digital force gauge were modified to measure the amount of denture base retention in newtons. The denture bases were seated over the edentulous maxillary ridge and pulled 3 times vertically at 10-minute intervals without denture adhesive (MB and HB control conditions) and with denture adhesive (MBA and HBA test conditions). For statistical analysis, a repeated-measures ANOVA was performed (α=.05). ResultsThe control MB condition had significantly higher retention values compared with all other conditions (P<.001). However, the use of adhesive significantly decreased the retention of the milled bases. No significant differences were found with or without the use of denture adhesive among heat-activated denture bases (P>.05). ConclusionsSignificantly higher retention values were recorded with milled denture bases than heat-activated resin bases without the use of denture adhesive. However, denture adhesive did negatively affect the retention of milled complete dentures.

POSSIBILITIES AND PERSPECTIVES OF RAMAN FLUORESCENCE DIAGNOSTIC APPLICATION IN DENTISTRY

Experimental-theoretic rationale and hardware-software device of application of Raman-fluorescence medical technologies in dentistry were performed. High-sensitive and high-specific express methods of caries and demineralization level of hard tooth tissues diagnostic, species indication of germs and express determination of its sensitivity to medications, verification of medications and drugs, malignant and benign neoplasms express diagnostic were presented. Wide range of method's clinical-diagnostic capabilities and of presented domestic hardware-software complex of Raman fluorescence diagnostic are recommended for clinical application.

Medical & Dental Adhesives and Technology - Artificial Joints and New Dental Technology -

Medical & Dental Adhesives and Technology - Artificial Joints and New Dental Technology -

Medical &amp; Dental Adhesives and Technology―Artificial Joints and New Dental Technology―

Medical &amp; Dental Adhesives and Technology―Artificial Joints and New Dental Technology―

Current digital technology in dentistry: Three-dimensional printing

Current digital technology in dentistry: Three-dimensional printing

Deploying diode laser in periodontics: An evidence-based review

Lasers have completely changed the concept of dental treatment since three and half decades of 20th century. After the invention of ruby laser by Maiman in 1960, laser has become the most magnetizing technology in dentistry. Diode Lasers have been used in initial periodontal therapy, surgery, and also in implant treatment. In many countries Laser has become a part of the dental armamentarium. The included articles were searched from PubMed, Trip Database, Google scholar and Cocharane database. The purpose of this review article is to critically analyze the effectiveness of diode laser on soft and hard tissue in the field of Periodontics.

Mediating Effect of the Basic Occupational Ability in the Relationship between Career Barriers and the Job-seeking Efficacy of a Dental Technology Student

Mediating Effect of the Basic Occupational Ability in the Relationship between Career Barriers and the Job-seeking Efficacy of a Dental Technology Student

A Study on Class Participation Factors that Affect the Class Satisfaction : Focusing on Students of Dental Technology Department

A Study on Class Participation Factors that Affect the Class Satisfaction : Focusing on Students of Dental Technology Department

The Effect of Non-smoking Education Before and After Lectures at the Schools of Dental Hygiene and Dental Technology

The Effect of Non-smoking Education Before and After Lectures at the Schools of Dental Hygiene and Dental Technology

Role of digital technology in prosthodontics: A step toward improving dental care

Advancements in dental technology enable patients to receive modern solutions of conventional dental problems. Prosthodontists can incorporate digital technology into their practices to improve their workflow efficiency and ease of collaboration with laboratories. In this article, digital technologies that are available for prosthetic dentistry such as digital radiography, electronic prescriptions, computerized case presentations, virtual articulator and facebow, computer-aided design/computer-aided manufacturing restorations, digital impressions, and shade selection are described along with emphasis on advantages and limitations of digital technology.

Pattern of patients' attendance to the dental clinic of federal college of dental technology and therapy, Enugu, Nigeria.

IntroductionOral health is part of general health and should not be considered in isolation, as it contributes to the individual's health related quality of life. The study aimed at assessing the pattern of attendance to the dental clinic using dental records of patients.MethodsThis was a retrospective study of 6008 retrieved case notes from the dental clinic of Federal College of Dental Technology and Therapy, Enugu, from June, 2016 to May, 2017. Data on age, sex and occupation were retrieved from the dental records of the institution. Association between age, sex, occupation and patient flow to dental clinic was determined.ResultsMore females (55.7%) than males (44.3%) attended the dental clinic within the study period. Also, those aged 16 to 30 years (39.5%) and school pupils/students (40.8%) attended dental clinic the most when compared to other attendees. Patient flow was greatest in the first quarter of the year (27.1%), followed by the third quarter (26.1%). However, patient flow was least in the last quarter (20.9%). There was significant association between age (P < 0.001), occupation (P = 0.03) and patient flow to dental clinic in yearly quarters.ConclusionBeing an adolescent or young adult and being a student were significantly associated with patient flow to the dental clinic in yearly quarters in the study area. Patient flow was greatest in the first quarter and least in the last quarter of the year. There is need to increase dental awareness, especially for preventive visit among older age group and non-students in the populace.

Dentists' opinions on using digital technologies in dental practice.

To investigate which opinions among dentists are associated with level of technology use, when characteristics of the dentist and dental practice, as well as motivating work aspects are taken into account. A total of 1000 general dental practitioners in the Netherlands received a questionnaire on digital technologies they use, opinions on using technologies and related motivating work aspects. Questions were derived from expert interviews, the Dentists' Experienced Job Resources Scale and literature on technology implementation. Technology use was measured as the number of technologies used, and divided into three technology user groups: low (using 0-4 technologies, mostly administrative and radiographic technologies), intermediate (using 5-7, more varied technologies) and high technology users (using 8-12, including more innovative diagnostic technologies). Opinions on technology use and motivating work aspects were analysed using principal components analysis (PCA) and exploratory factor analysis. Scores on all components and factors were calculated for each respondent by computing the mean of all valid responses on the underlying items. Differences in these scale scores on opinions among the technology user groups were assessed using one-way analysis of variance and Kruskal-Wallis tests. A multiple linear regression analysis assessed the association of scale scores about opinions on technology use with the sum of technologies used, taking into account motivating work aspects and characteristics of the dentist and dental practice. The response rate was 31%. Dentists who were high technology users perceived technologies as yielding more improvements in quality of care, adding more value to the dental practice and being easier to use, than low technology users. High technology users thought technologies added more value to their work and they reported higher skills and resources. They also focused more on technologies and thought these are more ready to use than low technology users. High technology users derived more motivation from "Immediate results" and "Craftsmanship" than low technology users. Personal and practice characteristics, motivating work aspects, and the opinion scales "Focus" and "Added value to dentist" explained 50% of the variance in the number of technologies a dentist uses. Opinions on digital technologies among dentists and motivating work aspects vary with level of technology use. Being more focused on technologies and perceiving a higher added value from using them are associated with using more digital dental technologies, when taking into account motivating work aspects and characteristics of the dentist and dental practice.