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首页> 外文期刊>The Journal of Prosthetic Dentistry >Relationship of denture cast measurements to width of maxillary anterior teeth.
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Relationship of denture cast measurements to width of maxillary anterior teeth.

机译：义齿铸造尺寸与上颌前牙宽度的关系。

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STATEMENT OF PROBLEM: When making complete dentures, clinicians may have difficulty with selection of properly sized denture teeth. PURPOSE: The purpose of this study was to determine if there are specific measurements made on an edentulous cast that could be useful to clinicians for selection of proper maxillary anterior denture tooth width. MATERIAL AND METHODS: Following Institutional Review Board approval, measurements were made on 50 maxillary and mandibular sets of complete denture casts and their marked and contoured occlusion rims and record bases consecutively submitted to a dental laboratory. The following 6 measurements were recorded for each set of casts: left mid-maxillary to right mid-maxillary, representing the distance between the respective residual ridge crest points adjacent to each canine eminence; left retromolar pad to right retromolar pad; incisive papilla to left hamular notch; incisive papilla to right hamular notch; left hamular notch to right hamular notch; and incisive papilla to vibrating line. These measurements were statistically compared with the control, the canine-to-canine distance as marked on the contoured maxillary occlusion rim to indicate the relaxed commissures. The casts were also classified as small, medium or large based upon the tooth width specified by the commercial mold guide for their respective canine-to-canine control measurement. The estimation bias was determined for each of the 6 measurements, and for those measurements for which the bias was significantly different from zero, a bias-correction was applied. St. Laurent's coefficient was used to describe the agreement between each (bias-corrected) measurement and the canine-to-canine control. A commercial guide was used to determine the accuracy of each of the 6 bias-corrected measurements in classifying denture teeth width as small, medium or large as compared to the same classification using the canine-to-canine control. RESULTS: The bias-corrected measurement from the left hamular notch mark to the right hamular notch mark, obtained by adding 10 mm, exhibited the greatest degree of agreement with the control. This measurement was also the only one of the 6 that correctly classified more than 50% of both the medium and large casts. None of the 6 measurements classified more than 30% of the small casts correctly. CONCLUSIONS: Of the 6 measurements considered here, the bias-corrected measurement from left hamular notch mark to right hamular notch mark was preferred for selecting denture teeth width.
机译：问题陈述：制作全口义齿时，临床医生可能难以选择合适大小的义齿。目的：本研究的目的是确定是否在无牙的石膏上进行了特定的测量，这些测量对临床医生选择合适的上颌前义齿的齿宽可能有用。材料和方法：在获得机构审查委员会的批准后，对50个上颌和下颌全口义齿铸模及其标记和轮廓化的咬合边缘和记录基底进行了测量，并连续提交牙科实验室。记录每组石膏的以下6个测量值：左上颌中部到右上颌中部，代表与每个犬齿相邻的相应残余脊脊点之间的距离;左后磨牙垫至右后磨牙垫;尖锐的乳头到左小切口右乳头切口切开乳头;左小腿切口到右小切口和尖锐的乳头到振动线。将这些测量值与对照进行统计比较，犬齿到犬齿的距离标记在轮廓上颌咬合边缘上，以指示松弛的连合。根据市售模具指南规定的齿宽，将铸模分为各自的犬到犬控制量，将其分为小，中或大。确定了6个测量值中的每个测量值的估计偏差，对于那些偏差明显不同于零的测量值，将应用偏差校正。 St. Laurent系数用于描述每次（偏差校正）测量值与犬对犬对照之间的一致性。与使用犬到犬对照进行的相同分类相比，使用商业指南来确定将义齿牙齿宽度分类为小，中或大的6种偏斜校正测量的准确性。结果：通过添加10 mm获得的从左脚小槽口标记到右脚小槽口标记的偏差校正测量值显示与控件的最大一致性。这项测量也是将6种以上的中型和大型铸件正确分类的唯一方法。 6个测量值均未正确分类超过30％的小型铸件。结论：在这里考虑的6个测量值中，从左手槽刻痕到右手槽刻痕的偏斜校正测量对于选择义齿宽度是优选的。

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