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Validation of 3d metric and superimposition tools in three software packages for the morphological comparison of laser scanned anterior dentition models / Validação de ferramentas tridimensionais de três softwares para mensuração e sobreposição tridimensional de modelos odontológicos visando à comparação morfológica
Franco, Ademir; Willens, Guy; Souza, Paulo Henrique Couto; Ignácio, SérgioAparecido; Thevissen, Patrick.
  • Franco, Ademir; University Hospitals Leuven. Department of Oral Health Sciences – Forensic Dentistry. Leuven. BE
  • Willens, Guy; University Hospitals Leuven. Department of Oral Health Sciences – Forensic Dentistry. Leuven. BE
  • Souza, Paulo Henrique Couto; Pontifícia Universidade Católica do Paraná. School of Health and Biosciences. Curitiba. BR
  • Ignácio, SérgioAparecido; Pontifícia Universidade Católica do Paraná. School of Health and Biosciences. Curitiba. BR
  • Thevissen, Patrick; University Hospitals Leuven. Department of Oral Health Sciences – Forensic Dentistry. Leuven. BE
Rev. Bras. Odontol. Leg. RBOL ; 3(2): 2-16, 2016. ilus, tab
Article in English | LILACS | ID: biblio-831248
ABSTRACT

Introduction:

Few studies succeeded on demonstrating that dentitions are unique. Methodological limitations may have influenced these outcomes.

Objective:

The present study aims to validate software packages for comparing human dentitions. Material and

methods:

A pool of 40 dental casts were laser scanned (XCAD 3D®, XCADCAM Technology®, São Paulo, Brazil) and implemented in Geomagic Studio® (GS) (3D Systems®, Rock Hill, USA), Cloud Compare® (CC) (Telecom Paris Tech® and EDF®, Paris, France), and Maestro 3D Ortho Studio® (MS) (AGE Solutions®, Pontedera, Italy) software packages to evaluate metric and superimposition tools.

Results:

Software performances did not significantly differ (p>0.05) considering cropping, landmarking and superimposition functions. GS was more precise for detecting identical models (p>0.05. Inter and intra examiner reproducibility reached optimal outcomes. Calibration was assured for software measuring tools and scanning process.

Conclusion:

Both GS and CC may be used for comparing 3D anterior dentitions. However, more practical and less operator-depending procedures are available in GS.
RESUMO

Introdução:

Poucos estudos obtiveram êxito em demonstrar a unicidade da dentição humana. Falhas metodológicas podem ter influenciado os resultados destes estudos.

Objetivo:

O presente estudo objetivou validar ferramentas contidas em pacotes de software existentes para comparar dentições humanas. Material e

método:

Uma amostra de 40 modelos odontológicos digitalizados (XCAD 3D®, XCADCAM Technology®, São Paulo, Brazil) foi selecionada e analisada utilizando os seguintes softwares Geomagic Studio® (GS) (3D Systems®, Rock Hill, USA), Cloud Compare® (CC) (Telecom Paris Tech® and EDF®, Paris, France), and Maestro 3D Ortho Studio® (MS) (AGE Solutions®, Pontedera, Italy).

Resultados:

Os softwares não apresentaram performances com diferença estatisticamente significante (p>0.05) considerando os procedimentos de recorte, colocação de pontos de referência (landmarks) e sobreposição de modelos. O software GS apresentou maior precisão para detectar modelos idênticos ((p>0.05). Testes intra e interexaminador resultaram em ótima concordância. Os softwares apresentaram ótima calibração de ferramentas métricas.

Conclusão:

Ambos os softwares GS e CC podem ser utilizados para comparar modelos odontológicos digitalizados. Contudo, performances mais práticas e independentes do operador podem ser alcançadas por meio do software GS.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Tooth / Forensic Sciences / National Institute of Biomedical Imaging and Bioengineering (U.S.) / Forensic Dentistry Language: English Journal: Rev. Bras. Odontol. Leg. RBOL Journal subject: Odontologia Legal Year: 2016 Type: Article Affiliation country: Belgium / Brazil Institution/Affiliation country: Pontifícia Universidade Católica do Paraná/BR / University Hospitals Leuven/BE

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Full text: Available Index: LILACS (Americas) Main subject: Tooth / Forensic Sciences / National Institute of Biomedical Imaging and Bioengineering (U.S.) / Forensic Dentistry Language: English Journal: Rev. Bras. Odontol. Leg. RBOL Journal subject: Odontologia Legal Year: 2016 Type: Article Affiliation country: Belgium / Brazil Institution/Affiliation country: Pontifícia Universidade Católica do Paraná/BR / University Hospitals Leuven/BE