Registration of serial maxillary models via the weighted rugae superimposition method

Abdi, Ali A.; Nouri, Mahtab

doi:10.1111/ocr.12142

Cited by 10 publications

(19 citation statements)

References 25 publications

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“… 17 , 18 In the current method, the segment of the palatine rugae and the medial palatine raphe were used, considered areas with relative stability for superposition. 9 , 10 , 12 , 18 , 21 The color-map generated demonstrated the method’s accuracy, once it was not observed any difference in superimposition areas: the medial third of the first rugae, the 2/3 of the third rugae, and the palatine raphe area ( Fig 12 ).…”

Section: Discussionmentioning

confidence: 83%

“…Several studies have performed the superposition of digital models using commercial software platforms that use simplified best-fit method. 12 This method, available in a wide range of programs, does not consider landmarks and anatomic fiduciary regions of interest that are considered stable and valid to perform the superposition. Moreover, there is also a cost limitation in the acquisition of such programs.…”

Section: D Digital Models Superposition Methodsmentioning

confidence: 99%

“…17,18 Apparently, the medial two thirds of the third rugae, and the small area posterior to it presents adequate anatomical stability, being considered the gold-standard area for maxillary superposition. 9 , 10 , 12 , 18 , 21 …”

Section: Introductionmentioning

confidence: 99%

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Superimposition of 3D maxillary digital models using open-source software

Anacleto

Souki

2019

Dental Press J. Orthod.

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Historically, whether for research purposes or clinical monitoring, orthodontic evaluation of dental movements has been done using plaster study models and two dimensional (2D) radiographs. However, new frontiers for the diagnosis, planning and outcome assessment of orthodontic treatments have arisen, due to the revolutionary digital tools which enable a three dimensional (3D) computerized analysis of dental movements by means of digital models. However, the software for 3D analysis are often costly, resulting in limited access to orthodontists. The present study aims to describe, through a clinical case presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics, a method for the superimposition of maxillary digital models using an open-source software to evaluate dental movements.

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Section: Discussionmentioning

confidence: 83%

Section: D Digital Models Superposition Methodsmentioning

confidence: 99%

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Superimposition of 3D maxillary digital models using open-source software

Anacleto

Souki

2019

Dental Press J. Orthod.

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“…Several studies have used the palatal rugaes as reference structures in model superimpositions for assessing changes in tooth position resulting from growth and aging as well as orthodontic treatment [18,[30][31][32][33][34]. The medial point of the third rugae and the medial of the second rugae, in this order, have been determined as the most stable points [30,31,33,35].…”

Section: Discussionmentioning

confidence: 99%

Mini Hyrax vs Hyrax expanders in the rapid palatal expansion in adolescents with posterior crossbite: a randomized controlled clinical trial

et al. 2021

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Purpose The aim of this study was to compare the dental effects, impact on quality of life, and pain perception of adolescents wearing Mini Hyrax and Hyrax expanders in rapid palatal expansion. Methods Thirty-four adolescents aged 11 to 16 years, with maxillary transverse deficiency (unilateral or bilateral posterior crossbite), were randomly allocated into two groups, Mini Hyrax group and Hyrax group (1:1 ratio). Dental effects were evaluated by digitally superimposed pretreatment and postretention three-dimensional intraoral scans on the palatal rugaes using the software 3DSlicer. Impact on quality of life was assessed with the OHIP-14 questionnaire applied in the pretreatment, posttreatment and postretention. Visual analog scale was applied 24, 48, and 72 h and 7 days after the first activation of the expander. Results Thirty of the 34 adolescents recruited completed the study. There were no statistically significant differences in dentoalveolar effects between groups. OHIP-14 scores across time among Mini Hyrax wearers were similar to those of the Hyrax wearers. The inter-group comparisons showed no difference between groups with respect to the OHIP-14 scores in posttreatment and postretention (p > 0.05). There were no differences in pain perception between groups. Considering intra-group comparison, the reduction in pain perception among adolescents in the Mini Hyrax group was gradual. Among adolescents in the Hyrax group, a statistically significant reduction between 48 and 72 h was observed. Conclusion There were no significant differences in dental effects, impact on quality of life and pain perception between adolescents wearing Mini Hyrax and Hyrax expanders in rapid palatal expansion.

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“…Stone models were scanned Abnormalities in teeth size and/or shape Full permanent dentition Vertical, transverse, or anteroposterior skeletal discrepancies Good general and oral health History of previous orthodontic treatment Severe crowding or protrusion requiring first premolars extractions Anti-inflammatory medication EFFECT OF PRP ON TOOTH MOVEMENT using a 3-Shape scanner (R500, 3shape, Copenhagen, Denmark). The five consecutive digital models were superimposed using 3-Shape analyzer software 14 (3shape, Copenhagen, Denmark). Color-coded superimposition was done to verify the accuracy of the superimposed models 15 ( Figure 5).…”

Section: Prp Preparation and Injectionmentioning

confidence: 99%

Effect of platelet-rich plasma on the rate of orthodontic tooth movement:

Eltimamy¹,

El-Sharaby²,

Eid³

et al. 2020

The Angle Orthodontist

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Objective To investigate the effect of local injection of platelet-rich plasma (PRP) on the rate of orthodontic tooth movement. Materials and Methods Sixteen female patients were randomly allocated in a split-mouth study design to receive PRP injections with CaCl2 activating solution on one side (intervention side) while the other side received CaCl2 injection only (control side). Canine retraction was performed on 0.017 × 0.025-inch stainless steel archwire applying 1.5 N retraction force. PRP and CaCl2 injections were done at 0, 3, and 6 weeks. The duration of the study was 4 months. Data were collected from digitized models. Assessment of pain accompanying the procedure was done using a visual analogue scale. Results The rate of canine retraction was faster on the intervention side in the first 2 months, with a statistically significant difference in the first month (P = .049). On the other hand, the rate was statistically significantly slower on the intervention side in the third month following cessation of PRP injections (P = .02). Pain increased following injections on both sides. Conclusions PRP showed a positive potential to accelerate the rate of tooth movement when injected in the first 2 months. Repeated injections of PRP to maintain a steady rate of accelerated tooth movement warrant further investigation.

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Registration of serial maxillary models via the weighted rugae superimposition method

Cited by 10 publications

References 25 publications

Superimposition of 3D maxillary digital models using open-source software

Superimposition of 3D maxillary digital models using open-source software

Mini Hyrax vs Hyrax expanders in the rapid palatal expansion in adolescents with posterior crossbite: a randomized controlled clinical trial

Effect of platelet-rich plasma on the rate of orthodontic tooth movement:

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