• Title/Summary/Keyword: prosthetics

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Creating a digitized database of maxillofacial prostheses (obturators): A pilot study

  • Elbashti, Mahmoud;Hattori, Mariko;Sumita, Yuka;Aswehlee, Amel;Yoshi, Shigen;Taniguchi, Hisashi
    • The Journal of Advanced Prosthodontics
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    • v.8 no.3
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    • pp.219-223
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    • 2016
  • PURPOSE. This study aimed to create a digitized database of fabricated obturators to be kept for patients' potential emergency needs. MATERIALS AND METHODS. A chairside intraoral scanner was used to scan the surfaces of an acrylic resin obturator. The scanned data was recorded and saved as a single standard tessellation language file using a three-dimensional modeling software. A simulated obturator model was manufactured using fused deposition modeling technique in a three-dimensional printer. RESULTS. The entire obturator was successfully scanned regardless of its structural complexity, modeled as three-dimensional data, and stored in the digital system of our clinic at a relatively small size (19.6 MB). A simulated obturator model was then accurately manufactured from these data. CONCLUSION. This study provides a proof-of-concept for the use of digital technology to create a digitized database of obturators for edentulous maxillectomy patients.

Experimental Study on the Swallowing Threshold of the Full Denture Wearer (총의치(總義齒) 장착환자(裝着患者)의 연하역치(曣下閾値) 관(關)한 실험적(實驗的) 연구(硏究))

  • Shim, Tae-Suk;Chin, Yong-Whan;Kim, Yung-Soo;Kim, Hyun-Ku
    • The Journal of Korean Academy of Prosthodontics
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    • v.8 no.1
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    • pp.77-79
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    • 1968
  • The swallowing threshold tests were conducted on the 8 subjects over one month of full denture wearing experience of Korean. The results were follows. 1) The swallowing threshold of the full denture wearer was higher than that of the normal control group. 2) The swallowing threshold of the full denture wearer was different according to the quality and quantity of the test food. 3) The swallowing threshold of full denture wearer seemed to be no correlation between short and long duration of wearing experience.

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The Role of Modeling in Prosthetics Make-up (보철분장에 있어 모델링의 역할)

  • Lee, Hwa-Jin
    • Journal of the Korean Society of Fashion and Beauty
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    • v.2 no.3 s.3
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    • pp.60-67
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    • 2004
  • Representing all the parts of human body visible to fit into the script, it can be told that real make-up has been done. Based on the point of view. it will be different from others. To become the beautiful, beauty make-up has to be done, however, to be someone described in the script or any other factions after analyzing characters of being represented, special make-up fits into that category. In the special make-up, there are two different pins: one is 2 dimension make-up which is describing images using dots, lines and colors and other is 3 dimension which will include necessary shapes to figure. Even though there seems to be different between modern technologies and handy work, since accurate measures and graphics have to be used to make perfect character describes in the script, more investments and studies than before have to be made. Real attraction of 3 dimension make-up is building up the images and shapes using unseen abstract images having analyzing characters. It will be decided in the working process called modeling. As having distinguished this part from other make-ups as named prosthetics make-up, proposing means and measures of prosthetics make-up will actually help the others who are studying make-up.

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Comparing a tablet computer and paper forms for assessing patient-reported outcomes in edentulous patients

  • Caetano, Thais Angelina;Ribeiro, Adriana Barbosa;Vecchia, Maria Paula Della;Cunha, Tatiana Ramirez;Chaves, Carolina de Andrade Lima;de Souza, Raphael Freitas
    • The Journal of Advanced Prosthodontics
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    • v.8 no.6
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    • pp.457-464
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    • 2016
  • PURPOSE. The aim of this study was to determine whether two methods of documentation, print and electronic forms, for the assessment of patient-reported outcomes (PRO) in complete denture wearers provide comparable results. The study also quantified the time needed for filling the forms by each method. MATERIALS AND METHODS. Thirty participants enrolled in a university clinic answered two forms (a questionnaire for denture satisfaction and OHIP-EDENT). They provided answers with two application methods in a random order, with a one-month interval between them: (1) electronic forms on a tablet computer; and (2) print forms. The methods were compared in terms of mean results, correlation/agreement, internal consistency, and spent time. RESULTS. Mean results for both methods were similar for each denture satisfaction item (100-mm VAS) and OHIP-EDENT summary score. Both questionnaires presented good internal consistency regardless of the application method (Cronbach's ${\alpha}=0.86$ or higher). Correlation and agreement between the methods regarding specific items was at least moderate for the majority of cases. Mean time for the electronic and print forms were 9.2 and 8.5 minutes, respectively (paired t test, P=.06, non-significant). CONCLUSION. The electronic method is comparable to print forms for the assessment of important PRO of prosthetic treatment for edentulism, considering the results and time needed. Findings suggest the viability of replacing print forms with a tablet for applying the tested inventories in clinical trials.

Treatment efficacy of gingival recession defects associated with non-carious cervical lesions: a systematic review

  • Oliveira, Livia Maria Lopes de;Souza, Camila Agra;Cunha, Sinara;Siqueira, Rafael;Vajgel, Bruna de Carvalho Farias;Cimoes, Renata
    • Journal of Periodontal and Implant Science
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    • v.52 no.2
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    • pp.91-115
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    • 2022
  • Purpose: This systematic review aimed to compare the efficacy, defined in terms of the mean percentage of root coverage (mRC), of surgical treatment approaches combined with adhesive restorations of non-carious cervical lesions (NCCLs) to that of root coverage alone in patients with a single gingival recession (GR) and NCCL. Methods: A literature search was conducted to identify longitudinal studies reporting the mRC following treatment for the correction of GR defects associated with NCCLs using a combination of surgical and restorative techniques in systemically and periodontally healthy patients. Results: The search resulted in the retrieval of 12,409 records. Seven publications met the inclusion criteria for the qualitative synthesis of data. The mRCs ranged from 69% to 97%. In the medium term, the gingival margin position was more stable when a connective tissue graft (CTG) was used, independently of whether restoration of teeth with NCCLs was performed. Conclusions: The strength of the evidence was limited by methodological heterogeneity in terms of study design as well as the unit and period of analysis, which precluded a metaanalysis. Although no definitive conclusion could be drawn due to the lack of sufficient evidence to estimate the effectiveness of the interventions, CTG-based procedures contributed to gingival margin stability regardless of the performance of restoration to treat NCCLs.

Immobilization Effect and Abdominal Pressure of Newly-Developed Lumbosacral Spinal Orthosis during Task Performance (새롭게 개발한 요천추 보조기의 과제 수행 중 척추의 고정효과와 복부압력)

  • Jeon, Kyung Soo;Yang, Hee Seung;Jang, Soo Woong;Shin, Hee Dong;Lee, Yun kyung;Lee, Young;Lee, Seul Bin Na;Ahn, Dong Young;Sim, Woo Sob;Cho, Min;Cho, Kyu Jik;Park, Dong Beom;Park, Kwan Soo
    • Clinical Pain
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    • v.19 no.2
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    • pp.70-79
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    • 2020
  • Objective: We evaluated the efficacy of a newly-developed spinal orthoses (V-LSO) by comparing the stabilizing effect, abdominal pressure, and comfort of 3 different semirigid LSOs (classic LSO, V-LSO, and Cybertech®) during various body movements. Method: Thirty healthy volunteers (23~47 years, 24 males, 6 females) were selected. A dual inclinometer measured the range of motion (ROM) while the participants performed flexion/extension and lateral flexion of the lumbar spine with 3 LSOs. The LSO's pressure on the abdominal surface was measured using 9 pressure sensors while lying, sitting, standing, flexion/extension, lateral flexion, axial rotation, and lifting a box. Comfort and subjective immobilization were analyzed by a questionnaire. Results: V-LSO had a statistically significant effect on flexion over Cybertech®. No significant differences were noted during extension and lateral flexion between the 3 LSOs. The abdominal pressure showed no significant differences while supine. While sitting, standing, and lifting a box, the mean abdominal pressure for V-LSO were significantly higher than those for Cybertech®. During lumbar flexion, the mean abdominal pressures for classic LSO and V-LSO were significantly higher than that of Cybertech®. For extension, lateral flexion and axial rotation, the abdominal pressure for V-LSO was significantly higher than those of classic LSO and Cybertech®. In the subjective analysis, V-LSO and Cybertech® scored best for comfort. Conclusion: The V-LSO and Cybertech® were more comfortable than the classic LSO, and hence, may have improved compliance with decreased discomfort. V-LSO may be superior to the other LSOs in restricting lumbar movement and increasing intraabdominal pressure.

Analysis of maxillofacial prosthetics at university dental hospitals in the capital region of Korea

  • Kim, Jee-Hwan;Shin, Soo-Yeon;Paek, Janghyun;Lee, Jong-Ho;Kwon, Ho-Beom
    • The Journal of Advanced Prosthodontics
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    • v.8 no.3
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    • pp.229-234
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    • 2016
  • PURPOSE. The purpose of this study was to investigate the demographic patterns of maxillofacial prosthetic treatment to identify the characteristics and geographic distribution of patients with maxillofacial prosthetics in the capital region of Korea. MATERIALS AND METHODS. This retrospective analytical multicenter study was performed by chart reviews. This study included patients who visited the department of prosthodontics at four university dental hospitals for maxillofacial prosthetic rehabilitation. Patients with facial and congenital defects or with insufficient medical data were excluded. The patients were classified into three categories based on the location of the defect. Patients' sex, age, and residential area were analyzed. Pearson's chi-square test with a significance level of 0.05 was used to analyze the variables. RESULTS. Among 540 patients with maxillofacial prosthetics, there were 284 (52.59%) male patients and 256 (47.41%) female patients. The number of the patients varied greatly by hospital. Most patients were older than 70, and the most common defect was a hard palate defect. Chi-square analysis did not identify any significant differences in sex, age, and distance to hospital for any defect group (P>.05). CONCLUSION. The results of this study indicated that there was imbalance in the distribution of patients with maxillofacial prosthetic among the hospitals in the capital region of Korea. Considerations on specialists and insurance policies for the improvement of maxillofacial prosthetics in Korea are required.