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Minimizing the extra-oral time in autogeneous tooth transplantation: use of computer-aided rapid prototyping (CARP) as a duplicate model tooth.

Lee SJ, Kim E - Restor Dent Endod (2012)

Bottom Line: And extra-oral time was recorded during the autotransplantation of the teeth.The average extra-oral time was 7 min 25 sec with the range of immediate to 25 min in cases which extra-oral root canal treatments were not performed while it was 9 min 15 sec when extra-oral root canal treatments were performed.The average radiographic distance between the root surface and the alveolar bone was 1.17 mm and 1.35 mm at mesial cervix and apex; they were 0.98 mm and 1.26 mm at the distal cervix and apex.

View Article: PubMed Central - PubMed

Affiliation: Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea.

ABSTRACT

Objectives: The maintenance of the healthy periodontal ligament cells of the root surface of donor tooth and intimate surface contact between the donor tooth and the recipient bone are the key factors for successful tooth transplantation. In order to achieve these purposes, a duplicated donor tooth model can be utilized to reduce the extra-oral time using the computer-aided rapid prototyping (CARP) technique.

Materials and methods: Briefly, a three-dimensional digital imaging and communication in medicine (DICOM) image with the real dimensions of the donor tooth was obtained from a computed tomography (CT), and a life-sized resin tooth model was fabricated. Dimensional errors between real tooth, 3D CT image model and CARP model were calculated. And extra-oral time was recorded during the autotransplantation of the teeth.

Results: The average extra-oral time was 7 min 25 sec with the range of immediate to 25 min in cases which extra-oral root canal treatments were not performed while it was 9 min 15 sec when extra-oral root canal treatments were performed. The average radiographic distance between the root surface and the alveolar bone was 1.17 mm and 1.35 mm at mesial cervix and apex; they were 0.98 mm and 1.26 mm at the distal cervix and apex. When the dimensional errors between real tooth, 3D CT image model and CARP model were measured in cadavers, the average of absolute error was 0.291 mm between real teeth and CARP model.

Conclusions: These data indicate that CARP may be of value in minimizing the extra-oral time and the gap between the donor tooth and the recipient alveolar bone in tooth transplantation.

No MeSH data available.


Related in: MedlinePlus

(a) 3-D CT image; (b) extracted donor tooth; (c) computer-aided prototyped model (starch).
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Figure 3: (a) 3-D CT image; (b) extracted donor tooth; (c) computer-aided prototyped model (starch).

Mentions: Three-D data (DICOM format; Digital Imaging and Communication in Medicine) of the donor tooth was obtained using the CT Highspeed Advantage and a Denta Scan program produced by GE Medical Systems (Milwaukee, WI, USA). The CT protocol involved a slit thickness of 1 mm. The 3-D digital data obtained was fed into a visualization program (V-works, Cybermed Co., Seoul, Korea) and exported to the rapid prototyping machine to fabricate the actual sized tooth model. The material for the tooth model was starch/resin (Figure 3).


Minimizing the extra-oral time in autogeneous tooth transplantation: use of computer-aided rapid prototyping (CARP) as a duplicate model tooth.

Lee SJ, Kim E - Restor Dent Endod (2012)

(a) 3-D CT image; (b) extracted donor tooth; (c) computer-aided prototyped model (starch).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3569397&req=5

Figure 3: (a) 3-D CT image; (b) extracted donor tooth; (c) computer-aided prototyped model (starch).
Mentions: Three-D data (DICOM format; Digital Imaging and Communication in Medicine) of the donor tooth was obtained using the CT Highspeed Advantage and a Denta Scan program produced by GE Medical Systems (Milwaukee, WI, USA). The CT protocol involved a slit thickness of 1 mm. The 3-D digital data obtained was fed into a visualization program (V-works, Cybermed Co., Seoul, Korea) and exported to the rapid prototyping machine to fabricate the actual sized tooth model. The material for the tooth model was starch/resin (Figure 3).

Bottom Line: And extra-oral time was recorded during the autotransplantation of the teeth.The average extra-oral time was 7 min 25 sec with the range of immediate to 25 min in cases which extra-oral root canal treatments were not performed while it was 9 min 15 sec when extra-oral root canal treatments were performed.The average radiographic distance between the root surface and the alveolar bone was 1.17 mm and 1.35 mm at mesial cervix and apex; they were 0.98 mm and 1.26 mm at the distal cervix and apex.

View Article: PubMed Central - PubMed

Affiliation: Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Korea.

ABSTRACT

Objectives: The maintenance of the healthy periodontal ligament cells of the root surface of donor tooth and intimate surface contact between the donor tooth and the recipient bone are the key factors for successful tooth transplantation. In order to achieve these purposes, a duplicated donor tooth model can be utilized to reduce the extra-oral time using the computer-aided rapid prototyping (CARP) technique.

Materials and methods: Briefly, a three-dimensional digital imaging and communication in medicine (DICOM) image with the real dimensions of the donor tooth was obtained from a computed tomography (CT), and a life-sized resin tooth model was fabricated. Dimensional errors between real tooth, 3D CT image model and CARP model were calculated. And extra-oral time was recorded during the autotransplantation of the teeth.

Results: The average extra-oral time was 7 min 25 sec with the range of immediate to 25 min in cases which extra-oral root canal treatments were not performed while it was 9 min 15 sec when extra-oral root canal treatments were performed. The average radiographic distance between the root surface and the alveolar bone was 1.17 mm and 1.35 mm at mesial cervix and apex; they were 0.98 mm and 1.26 mm at the distal cervix and apex. When the dimensional errors between real tooth, 3D CT image model and CARP model were measured in cadavers, the average of absolute error was 0.291 mm between real teeth and CARP model.

Conclusions: These data indicate that CARP may be of value in minimizing the extra-oral time and the gap between the donor tooth and the recipient alveolar bone in tooth transplantation.

No MeSH data available.


Related in: MedlinePlus