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KMID : 1004520230390030146
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Journal of Dental Rehabilitation and Applied Science
2023 Volume.39 No. 3 p.146 ~ p.157
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New anterior guidance induction through spontaneous gap closure after an increase in vertical dimension: a case report
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Nam Jung-Hyun
Kim Jong-Hee
Hengbo Wang
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Abstract
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The bite collapses due to posterior teeth loss or wear results in inadequate space for restoration and esthetic concerns. Increasing the occlusal vertical dimension to improve space deficiency rotates the mandible posteriorly, creating a gap between the maxillary and mandibular anterior teeth, leading to loss of anterior guidance. To solve this problem, the prosthodontics or orthodontics treatments are the commonly used methods for proper anterior guidance. However, it is reasonable to assume that the anterior teeth can naturally relapse to their original position when the occlusal force is eliminated. Therefore, this case report aimed to test whether natural relapse could recover the lost anterior guidance to develop a less invasive and more convenient treatment method. Digital superimposition was used to evaluate the changes in anterior teeth alignment to confirm the change of the recovered anterior guidance. The appropriate indications for this new treatment method were defined and applied clinically.
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KEYWORD
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occlusal vertical dimension, implant, anterior guidance, superimposition, axial displacement
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