scholarly journals Studies on dimensional changes of dentures during polymerizing process Part 1. Three dimensional investigation in the denture base area of maxillary complete dentures.

1985 ◽  
Vol 29 (2) ◽  
pp. 310-318 ◽  
Author(s):  
Tetsuya Habu ◽  
Akihiko Inanaga ◽  
Tetsuji Takeuchi ◽  
Naoaki Sawamura ◽  
Minoru Kawaguchi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Complete Dentures ◽  
Denture Base ◽  
Dimensional Changes ◽  
Base Area

scholarly journals Studies on photoaccelerated resin used for prosthetic dentistry. Part 2. The dimensional changes in a denture base area by surface treatment with the light-cured resin (1).

1985 ◽  
Vol 29 (2) ◽  
pp. 319-324
Author(s):  
Naoaki Sawamura ◽  
Tetsuji Takeuchi ◽  
Hiroshi Shiraki ◽  
Akihiko Inanaga ◽  
Tetsuya Habu ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Denture Base ◽  
Dimensional Changes ◽  
Base Area ◽  
Prosthetic Dentistry

scholarly journals Evaluation of Dimensional Changes According to Aging Period and Postcuring Time of 3D-Printed Denture Base Prostheses: An In Vitro Study

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6185
Author(s):  
Seung-Ho Shin ◽  
Re-Mee Doh ◽  
Jung-Hwa Lim ◽  
Jae-Sung Kwon ◽  
June-Sung Shim ◽  
...  
Keyword(s):  
Dimensional Stability ◽  
Three Dimensional ◽  
In Vitro Study ◽  
Denture Base ◽  
Dimensional Changes ◽  
Aging Period ◽  
Stability Change ◽  
3D Printed ◽  
The Stability

During the three-dimensional (3D) printing process of a dental prosthesis, using photopolymer resin, partially polymerized resin is further cured through the postcuring process that proceeds after the printing, which improves the stability of the printed product. The mechanical properties of the end product are known to be poor if the postcuring time is insufficient. Therefore, this study evaluated the effect of the postcuring time of the 3D-printed denture base on its dimensional stability, according to the aging period. The 3D prints were processed after designing maxillary and mandibular denture bases, and after the following postcuring times were applied: no postcuring, and 5, 15, 30, and 60 min. The dimensional stability change of the denture base was evaluated and analyzed for 28 days after the postcuring process. The trueness analysis indicated that the mandibular denture base had lower output accuracy than the maxillary denture base, and the dimensional stability change increased as postcuring progressed. In the no postcuring group for the mandible, the error value was 201.1 ± 5.5 µm (mean ± standard deviation) after 28 days, whereas it was 125.7 ± 13.0 µm in the 60 min postcuring group. For both the maxilla and the mandible, shorter postcuring times induced larger dimensional stability changes during the aging process. These findings indicate that in order to manufacture a denture base with dimensional stability, a sufficient postcuring process is required during the processing stage.

scholarly journals Investigation of in vivo three‐dimensional changes of the spinal canal after corrective surgeries of the idiopathic scoliosis

JOR Spine ◽  
2021 ◽  
Author(s):  
Chaofan Han ◽  
Yong Hai ◽  
Chaochao Zhou ◽  
Peng Yin ◽  
Runsheng Guo ◽  
...  
Keyword(s):  
Idiopathic Scoliosis ◽  
Spinal Canal ◽  
Three Dimensional ◽  
Dimensional Changes

scholarly journals Digital Workflow to Fabricate Complete Dentures for Edentulous Patients Using a Reversing and Superimposing Technique

2021 ◽  
Vol 11 (13) ◽  
pp. 5786
Author(s):  
Hwa-Jung Lee ◽  
Jeongho Jeon ◽  
Hong Seok Moon ◽  
Kyung Chul Oh
Keyword(s):  
Additive Manufacturing ◽  
Computer Aided Design ◽  
Digital Data ◽  
Complete Dentures ◽  
Intraoral Scanner ◽  
Digital Workflow ◽  
Denture Base ◽  
Scan Data ◽  
Edentulous Patients ◽  
Aided Design

This technical procedure demonstrates a 4-step completely digital workflow for the fabrication of complete dentures in edentulous patients. The digital scan data of the edentulous arches were obtained using an intraoral scanner, followed by the fabrication of modeless trial denture bases using additive manufacturing. Using the trial denture base and a wax rim assembly, the interarch relationship was recorded. This record was digitized using an intraoral scanner and reversed for each maxillary and mandibular section individually. The digital scan data directly obtained using the intraoral scanner were superimposed over the reversed data, establishing a proper interarch relationship. The artificial teeth were arranged virtually and try-in dentures were additively manufactured. Subsequently, the gingival and tooth sections were additively manufactured individually and characterized. Thus, fabrication of digital complete dentures can be accomplished using digital data characteristics. The workflow includes data acquisition using an intraoral scanner, data processing using reverse engineering and computer-aided design software programs, and additive manufacturing.

Three-dimensional changes in root angulation of buccal versus palatal maxillary impacted canines after orthodontic traction: A retrospective before and after study

2021 ◽  
Author(s):  
Yalil Augusto Rodríguez-Cárdenas ◽  
Luis Ernesto Arriola-Guillén ◽  
Aron Aliaga-Del Castillo ◽  
Gustavo Armando Ruíz-Mora ◽  
Guilherme Janson ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Dimensional Changes ◽  
Impacted Canines ◽  
Before And After ◽  
Before And After Study
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