Contour of lingual surface in lower complete denture formed by polished surface impression
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
PURPOSE. The aim of this study was to analyze the shapes of lingual polished surfaces in lower complete dentures formed by polished surface impressions and to provide reference data for use when manufacturing edentulous trays and lower complete dentures. MATERIALS AND METHODS. Twenty-six patients with mandibular edentulism were studied. After lower wax dentures were fabricated, wax was removed from the lingual side of the wax denture and a lingual polished surface impression was obtained with tissue conditioner. The definitive denture was scanned with a three-dimensional scanner, and scanned images were obtained. At the cross-sections of the lingual frenum, lateral incisors, first premolars, first molars, and anterior border of the retromolar pads, three points were marked and eight measurements were taken. The Kruskal-Wallis test and a post hoc analysis with the Mann-Whitney test were performed. RESULTS. Each patient showed similar values for the same areas on the left and right sides without a statistically significant difference. The height of the contour of the lingual polished surface at the lingual frenum was halfway between the occlusal plane and lingual border, it moved gradually in a downward direction. The angle from the occlusal plane to the height of the contour of the lingual polished surface was increased as it progressed from the lingual frenum towards the retromolar pads. CONCLUSION. The shape of the mandibular lingual polished surface was convex at the lingual frenum, lateral incisors and gradually flattened towards the first molars and retromolar pads.
Abstract
PURPOSE. The aim of this study was to analyze the shapes of lingual polished surfaces in lower complete dentures formed by polished surface impressions and to provide reference data for use when manufacturing edentulous trays and lower complete dentures. MATERIALS AND METHODS. Twenty-six patients with mandibular edentulism were studied. After lower wax dentures were fabricated, wax was removed from the lingual side of the wax denture and a lingual polished surface impression was obtained with tissue conditioner. The definitive denture was scanned with a three-dimensional scanner, and scanned images were obtained. At the cross-sections of the lingual frenum, lateral incisors, first premolars, first molars, and anterior border of the retromolar pads, three points were marked and eight measurements were taken. The Kruskal-Wallis test and a post hoc analysis with the Mann-Whitney test were performed. RESULTS. Each patient showed similar values for the same areas on the left and right sides without a statistically significant difference. The height of the contour of the lingual polished surface at the lingual frenum was halfway between the occlusal plane and lingual border, it moved gradually in a downward direction. The angle from the occlusal plane to the height of the contour of the lingual polished surface was increased as it progressed from the lingual frenum towards the retromolar pads. CONCLUSION. The shape of the mandibular lingual polished surface was convex at the lingual frenum, lateral incisors and gradually flattened towards the first molars and retromolar pads.
참고문헌 (17)
- Jacobson TE, "A contemporary review of the factors involved in complete denture retention, stability, and support. Part I: retention", J Prosthet Dent, 49, pp.5~15 (1983)
- Beresin VE, "The neutral zone in complete dentures", J Prosthet Dent, 36, pp.356~367 (1976)
- Bohnenkamp DM, "Phonetics and tongue position to improve mandibular denture retention: a clinical report", J Prosthet Dent, 98, pp.344~347 (2007)
- Brill N, "The dynamic nature of the lower denture space", J Prosthet Dent, 15, pp.401~418 (1965)
- Shanahan TEJ, "Stabilizing lower dentures on unfavorable ridges", J Prosthet Dent, 12, pp.420~424 (1962)
- Srivastava V, "The neutral zone: Concept and technique", J Orofac Res, 2, pp.42~47 (2012)
- Fish EW., "Principles of full denture prosthesis", pp.1~8 (1933), John Bale, Sons&Danielsson
- Neill DJ, "Identifying the denture space", J Oral Rehabil, 9, pp.259~277 (1982)
- Raybin NH, "The polished surface of complete dentures", J Prosthet Dent, 13, pp.236~239 (1963)
- Tuckfield WJ, "The problem of the mandibular denture", Dent J Aust, 23, pp.331~354 (1951)
- Tillman EJ, "Removable partial upper and complete lower dentures", J Prosthet Dent, 11, pp.1098~1104 (1961)
- Kwon KR, "Prosthodontic treatment for edentulous patient", pp.323~ (2007), Shinhung Internarional
- Sussman BA, "Procedures in complete denture prosthesis", J Prosthet Dent, 10, pp.1011~1021 (1960)
- Block LS, "Common factors in complete denture prosthetics", J Prosthet Dent, 3, pp.736~746 (1953)
- Starcke EN Jr, "The contours of polished surfaces of complete dentures: a review of the literature", J Am Dent Assoc, 81, pp.155~160 (1970)
- Cagna DR, "The neutral zone revisited:from historical concepts to modern application", J Prosthet Dent, 101, pp.405~412 (2009)
- Kolb HR, "Variable denture-limiting structures of the edentulous mouth. II. Mandibular border areas", J Prosthet Dent, 16, pp.202~212 (1966)