Precision of the virtual occlusal record

Botsford, Keyan P; Frazier, Michael C; Ghoneima, Ahmed; Utreja, Achint; Bhamidipalli, Surya Sruthi; Stewart, Kelton T.

doi:10.2319/092018-684.1

Cited by 21 publications

(21 citation statements)

References 11 publications

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“…This technology has registered a constantly increasing use in many fields of dentistry, such as restorative dentistry, prosthodontics, orthodontics, and implantology. It allows for a completely digital workflow, from impression to final framework, with clinical reliability (precision of the virtual occlusal record) [ 10 ] and good patient feedback [ 11 ].…”

Section: Discussionmentioning

confidence: 99%

Multifunctional Templates for Minimized Osteotomy, Implantation, and Palatal Distraction with a Mini-Screw-Assisted Expander in Schizodontism and Maxillary Deficit

Nilius¹,

Hess²,

Haim

et al. 2020

Case Reports in Dentistry

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Purpose. Schizodontism is complete separation of a dental germ. It results in a twin tooth and supernumerary teeth. The treatment of transverse constriction in combination with supernumerary dental germs and impacted central incisors can pose a challenge, especially in young patients, when the number of permanent teeth is not adequate to ensure secure anchorage. The use of navigation templates based on three-dimensional X-ray images allows for precise insertion of temporary mini-implants for the acquisition of palatal distractors. In addition, templates allow for minimally invasive biopsies and osteotomies. Methods. The treatment of schizodontism, dentitio tarda, and transverse constriction is to be assessed as an interdisciplinary method by using mini-screw-assisted devices. Minimized osteotomy of impacted supernumerary teeth or dental implantation can be carried out in a one-step-procedure based on digital preplanning and prefabrication of orthodontic devices. Results. Multifunctional templates allow for early planning, preoperative fabrication, and intraoral fixation of orthodontic appliances. In the case of an adolescent patient, a sustainable, interdisciplinary treatment concept could be demonstrated that shows age-appropriate gnathological development and stable growth conditions over a follow-up period of 10 years. Conclusion. One can likely assume that multifunctional templates allow for minimally invasive one-step surgeries as an interdisciplinary tool between orofacial surgery and modern orthodontics.

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Section: Discussionmentioning

confidence: 99%

Multifunctional Templates for Minimized Osteotomy, Implantation, and Palatal Distraction with a Mini-Screw-Assisted Expander in Schizodontism and Maxillary Deficit

Nilius¹,

Hess²,

Haim

et al. 2020

Case Reports in Dentistry

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show abstract

“…The results showed that, after a certain guidance and practice, the subjective classification of bite force was reliable, and there was no difference of occlusal contacts at the same pressure in the same individual. Botsford, KP et al 40 evaluated the precision of the virtual occlusal record by using an IOS. No statistically significant differences were observed in the proportion of location and area of the contacts between the two bite registrations.…”

Section: Discussionmentioning

confidence: 99%

Construction of virtual intercuspal occlusion: Considering tooth displacement

Li¹,

Chen²,

Yong³

et al. 2021

J of Oral Rehabilitation

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Common impressions cannot accurately duplicate the dental occlusion under occlusal force due to tooth displacement and mandibular deformation. To establish new methods to construct virtual intercuspal occlusion and assess their construction accuracy. The intraoral occlusal contacts of posterior teeth of 15 subjects were recorded with 8 μm and 100 μm articulating paper, respectively, and the marked teeth and buccal bite data were scanned with an intraoral scanner. The virtual dental occlusions were separately determined by buccal bite registration (BBR) method, and 3 new methods, namely segmented tooth registration (STR), occlusal contact areas (marked by 8 μm articulating paper) registration (OCR) and mixing registration (MR) methods. With the intraoral contact areas marked by 100 μm articulating paper set as reference and contact areas of the 4 virtual occlusions as tests, sensitivity, positive predictive value (PPV) and the ratio of overlapping areas were calculated. Kruskal‐Wallis test or 1‐way ANOVA was used to analyse the difference among groups. The sensitivity ranged from 0.69 to 0.94 and the PPV from 0.67 to 0.90. Sensitivity of OCR group and PPV of STR and OCR groups were different from that of BBR group at overlapping threshold of 50% (P = .028, .028 and .006). There was statistical difference of the ratio of overlapping areas over reference areas, and the values of STR and OCR groups were higher than that of BBR group (P = .045 and .021). The ability of STR and OCR methods to construct virtual intercuspal occlusion was better than BBR method.

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“…Additionally, the lower dentition was not evaluated in the current study. With the virtual occlusal record, 22 the lower dentition could be transferred to the dentofacial image, and adding this additional step should be tested in a future study.…”

Section: Discussionmentioning

confidence: 99%

Integration of digital maxillary dental casts with 3D facial images in orthodontic patients:

Xiao¹,

Liu²,

Gu³

2019

The Angle Orthodontist

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Objective To evaluate three-dimensional (3D) accuracy and reliability of nonradiographic dentofacial images integrated with a two-step method. Methods 3D facial images, cone-beam computed tomography (CBCT) images and digital maxillary dental casts were obtained from 20 pre-orthodontic subjects. Digital dental casts were integrated into 3D facial images using a two-step method based on the anterior tooth area. 3D coordinate values of five dental landmarks were identified in both dentofacial images and CBCT images. The accuracy of the integration method was assessed with paired t-tests between dentofacial images and CBCT-based reference standards. Intraclass correlation coefficients (ICCs) were assessed for the reliability of dentofacial images and CBCT-based images. Analysis of variance and Kruskal-Wallis tests evaluated the accuracy of the method in different dimensions. Results There was no statistical difference between dentofacial images and CBCT reference standards in both translational and rotational dimensions (P > .05). Translational mean absolute errors for full dentitions were within 0.42 mm and ICCs were over 0.998 in x, y, and z directions. Rotational mean absolute errors for full dentitions were within 0.92° and ICCs over 0.734 in pitch, yaw, and roll orientations. Integration errors were significantly greater in the first molar, z-translation, and pitch rotation (P < .05). Conclusions Integrating 3D dentofacial images with the two-step method is precise and acceptable for clinical diagnostics and scientific purposes. Errors were greater in the molar region, z-translation, and pitch rotation.

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Precision of the virtual occlusal record

Cited by 21 publications

References 11 publications

Multifunctional Templates for Minimized Osteotomy, Implantation, and Palatal Distraction with a Mini-Screw-Assisted Expander in Schizodontism and Maxillary Deficit

Multifunctional Templates for Minimized Osteotomy, Implantation, and Palatal Distraction with a Mini-Screw-Assisted Expander in Schizodontism and Maxillary Deficit

Construction of virtual intercuspal occlusion: Considering tooth displacement

Integration of digital maxillary dental casts with 3D facial images in orthodontic patients:

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