Three-dimensional biometric study of palatine rugae in children with a mixed-model analysis: A 9-year longitudinal study

Hong-kyun, Kim; Moon, Sung-Chul; Lee, Shin-Jae; Park, Young‐Seok

doi:10.1016/j.ajodo.2011.11.018

Cited by 43 publications

(33 citation statements)

References 23 publications

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“…In growing subjects, growth is expected to occur in the palate including the rugae region 4, 12–16 . Palatal depth and surface area also increase during growth 13, 17 , as do the dentoalveolar processes, especially in the transitional period of the development of the dentition 18, 19 .…”

Section: Introductionmentioning

confidence: 99%

Assessment of different techniques for 3D superimposition of serial digital maxillary dental casts on palatal structures

Vasilakos

Schilling

Halazonetis

et al. 2017

Sci Rep

137

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Serial 3-dimensional dental model superimposition provides a risk-free, detailed evaluation of morphological alterations on a patient’s mouth. Here, we evaluated accuracy and precision of five palatal areas, used for superimposition of maxillary 3D digital dental casts. Sixteen pre- and post-orthodontic treatment dental casts of growing patients (median time lapse: 15.1 months) were superimposed on each palatal area using the iterative closest point algorithm. Area A (medial 2/3 of the third rugae and a small area dorsal to them) was considered the gold standard, due to high anatomical stability. Areas B, C, and D added a distal extension along the midpalatal raphe, an anterior extension to the second rugae, and the remaining palatal surface, respectively. Area E was similar to A, located more posteriorly. Non parametric multivariate models showed minimal or no effect on accuracy and precision by operator, time point, or software settings. However, the choice of superimposition area resulted in statistically significant differences in accuracy and clinically significant differences in detected tooth movement (95% limits of agreement exceeding 1 mm and 3°). Superimposition on area A provided accurate, reproducible, and precise results. Outcomes were comparable for area B, but deteriorated when alternative areas were used.

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Section: Introductionmentioning

confidence: 99%

Assessment of different techniques for 3D superimposition of serial digital maxillary dental casts on palatal structures

Vasilakos

Schilling

Halazonetis

et al. 2017

Sci Rep

137

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“…The errors and differences between the original casts were small, a result that coincides with those of previous studies. [10][11][12][13] In contrast, the reproducibility of polyurethane casts fabricated by the iTero milling system was not as good as that associated with virtual casts. This was verified by the fact that the casts fabricated by RP machines exhibited smaller differences and much greater ICCs than did polyurethane casts.…”

Section: Discussionmentioning

confidence: 99%

The Evaluation of Working Casts Prepared from Digital Impressions

Hwang

et al. 2013

Operative Dentistry

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SUMMARY Objective The aim of this study is to evaluate the reproducibility of working casts of a digital impression system by comparing them with the original, virtual, and rapid prototyping casts. Materials and Methods A total of 54 cast sets in clinically stable occlusion were used. They were scanned by an iTero intraoral scanner and converted into STL format virtual casts. Rapid prototyping casts and polyurethane casts were fabricated from the iTero milling system based on the virtual casts. Several horizontal and vertical measurements were performed from the four types of casts, that is, original stone casts, virtual casts, rapid prototyping casts, and polyurethane casts of iTero. Measurement error, intraclass correlation coefficient (ICC), and differences among the casts were calculated and compared. Results Casts from iTero milling machines exhibited greater dimensional differences and lower ICC values than did other casts. In addition, many of the measurements of the iTero working casts showed statistically significant differences in comparison to the three other types of casts. In contrast, there were no statistically significant differences between the virtual and original casts. Conclusion Virtual casts made by the iTero intraoral scanner exhibited excellent reproducibility. However, the casts from the iTero milling machine showed greater dimensional differences and lower reproducibility compared to other types of casts.

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“…However, since the angle of divergence is formed between the median palatal suture and the medial point (origin) of the last primary/secondary rugae, we can establish parallelism with the results of previous research about stability of medial points of palatal rugae. The medial points of rugae were considered stable after orthodontic treatment in four of the studies reviewed [3,4,17,18].…”

Section: Discussionmentioning

confidence: 99%

“…The linear dimensions of the palatal rugae are altered during the normal growth of an individual in a way that is statistically significant [3,4].…”

Section: Discussionmentioning

confidence: 99%

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The Medico-Legal Importance of Establishing Human Identity by Palatal Rugoscopy: Evaluation of the Immutability and Individuality of Palatal Rugae under the Influence of ante mortem Orthodontic Treatment

Af¹,

Diamantino²,

Pestana³

et al. 2015

Journal of Forensic Science & Criminology

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Introduction: The palatal rugae can be an alternative method of forensic identification. Through the years, several investigations focused on the effect of orthodontic treatment in the palatal rugae pattern. IntroductionThe The palatal rugae can be an alternative method of forensic identification in cases such as car accidents, terrorist acts or mass disasters on which it's difficult to identify an individual through fingerprints or dental records or cases of recent corpses total or partially mutilated [1,2]. ISSN: 2348-9804Objectives: Evaluate the concepts of immutability and individuality of the palatal rugae in a Portuguese adult population submitted to orthodontic treatment, for the purpose of medico-legal identification through Thomas and Kotze classification system. Additionally, we wanted to establish comparison of the palatal rugae of each subject, and between genders. Materials and Methods:Thirty three pairs of study dental casts, from thirty three patients submitted to orthodontic treatment in the Department of Orthodontics in College of Dentistry -University of Lisbon, were photographed and classified according to the classification system described by Thomas and Kotze. We proceeded to a statistical analysis running SPSS for Windows, version 20.0, using descriptive analysis and tests, with an inclusion level p <0.05. The tests applied were normality tests and T Student for paired samples. Results:The number and length of primary rugae remain identical when comparing the situation before and after orthodontic treatment. The number of secondary rugae decreases after orthodontic treatment. The variation of the angle of divergence was not statistically significant. The area of primary rugae presented statistically significant reduction after orthodontic treatment. There has no statistically significant differences between genders for total number number of rugae or average length of primary rugae (p <0.05). Discussion and Conclusion:The palatal rugae pattern does not remain stable after orthodontic treatment, and this refutes the supposed long term stability of the palatal rugae pattern. Therefore, it influences the ability to establish a positive medico-legal identification of a recent copse, if the person was submitted to ante mortem orthodontic treatment. The identification might still be possible if we possess a last ante mortem palatal record in these situations, to allow identification based on positive individual characteristics, through comparison with the post-mortem record. Considering gender, no statistically significant differences were found. This subject remains controversial and deserves further research.The linear dimensions of the palatal rugae are altered during the normal growth of an individual in a way that is statistically significant [3,4].

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Three-dimensional biometric study of palatine rugae in children with a mixed-model analysis: A 9-year longitudinal study

Cited by 43 publications

References 23 publications

Assessment of different techniques for 3D superimposition of serial digital maxillary dental casts on palatal structures

Assessment of different techniques for 3D superimposition of serial digital maxillary dental casts on palatal structures

The Evaluation of Working Casts Prepared from Digital Impressions

The Medico-Legal Importance of Establishing Human Identity by Palatal Rugoscopy: Evaluation of the Immutability and Individuality of Palatal Rugae under the Influence of ante mortem Orthodontic Treatment

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