Skelettal verankerte Molarenmesialisierung mittels digitalisierter Modelle und zweier Oberfla¨chenregistrierungsverfahren: Analyse der Behandlungseffekte

Kathrin Becker, Benedict Wilmes, Chantal Grandjean, Sivabalan Vasudavan, Dieter Drescher

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Purpose: To (1) quantify the three-dimensional treatment effect of a Mesialslider appliance using superimposed digital models, (2) to evaluate anchorage loss (measured by incisor displacement), and (3) to assess agreement between two different matching approaches, i.e., control point (CP)-based and iterative closest point (ICP) matching. Methods: In a retrospective study, the effects of a skeletally anchored uni- and bilateral mesialization appliance (Mesialslider) as well as simultaneous mesialization and distalization appliance (Mesio-Distalslider) were evaluated in 48 subjects (aged 11–53 years). Pre- and posttreatment casts were digitized and superimposed with two different approaches, i.e., using ten manually selected control points located at the anterior palate and by means of an automated ICP-matching approach using a standardized palatal reference area. The treatment effects were evaluated using control points on the maxillary central incisors and maxillary molar teeth, and the methods were compared through the application of linear regression analyses and computation of alignment errors. Results: Average upper molar mesialization was 6.3 ± 2.6 mm. Anchorage loss, designated as the mean amount of upper incisor displacement, was less than 0.5 mm in all dimensions investigated. Using the measurement method sufficient registration was possible using both approaches and corresponding tooth movements were significantly correlated (p < 0.01). Conclusions: Accurate measurements of tooth displacement can be performed using both CP- and ICP-based matching approaches. Within the limits of performing a retrospective study, a premolar width of molar mesialization appeared possible without clinically relevant anchorage loss.

Translated title of the contributionSkelettal verankerte Molarenmesialisierung mittels digitalisierter Modelle und zweier Oberfla¨chenregistrierungsverfahren: Analyse der Behandlungseffekte
Original languageGerman
Pages (from-to)11-18
Number of pages8
JournalJournal of Orofacial Orthopedics
Volume79
Issue number1
DOIs
Publication statusPublished - Jan 2018

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Incisor
Tooth
Retrospective Studies
Tooth Movement Techniques
Palate
Bicuspid
Linear Models
Regression Analysis

Cite this

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title = "Skeletally anchored mesialization of molars using digitized casts and two surface-matching approaches: Analysis of treatment effects",
abstract = "Purpose: To (1) quantify the three-dimensional treatment effect of a Mesialslider appliance using superimposed digital models, (2) to evaluate anchorage loss (measured by incisor displacement), and (3) to assess agreement between two different matching approaches, i.e., control point (CP)-based and iterative closest point (ICP) matching. Methods: In a retrospective study, the effects of a skeletally anchored uni- and bilateral mesialization appliance (Mesialslider) as well as simultaneous mesialization and distalization appliance (Mesio-Distalslider) were evaluated in 48 subjects (aged 11–53 years). Pre- and posttreatment casts were digitized and superimposed with two different approaches, i.e., using ten manually selected control points located at the anterior palate and by means of an automated ICP-matching approach using a standardized palatal reference area. The treatment effects were evaluated using control points on the maxillary central incisors and maxillary molar teeth, and the methods were compared through the application of linear regression analyses and computation of alignment errors. Results: Average upper molar mesialization was 6.3 ± 2.6 mm. Anchorage loss, designated as the mean amount of upper incisor displacement, was less than 0.5 mm in all dimensions investigated. Using the measurement method sufficient registration was possible using both approaches and corresponding tooth movements were significantly correlated (p < 0.01). Conclusions: Accurate measurements of tooth displacement can be performed using both CP- and ICP-based matching approaches. Within the limits of performing a retrospective study, a premolar width of molar mesialization appeared possible without clinically relevant anchorage loss.",
keywords = "3D tooth movement, Incisor stability, Mesialization, Skeletal anchorage, Surface matching, Treatment effects",
author = "Kathrin Becker and Benedict Wilmes and Chantal Grandjean and Sivabalan Vasudavan and Dieter Drescher",
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language = "German",
volume = "79",
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Skeletally anchored mesialization of molars using digitized casts and two surface-matching approaches : Analysis of treatment effects. / Becker, Kathrin; Wilmes, Benedict; Grandjean, Chantal; Vasudavan, Sivabalan; Drescher, Dieter.

In: Journal of Orofacial Orthopedics, Vol. 79, No. 1, 01.2018, p. 11-18.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Skeletally anchored mesialization of molars using digitized casts and two surface-matching approaches

T2 - Analysis of treatment effects

AU - Becker, Kathrin

AU - Wilmes, Benedict

AU - Grandjean, Chantal

AU - Vasudavan, Sivabalan

AU - Drescher, Dieter

PY - 2018/1

Y1 - 2018/1

N2 - Purpose: To (1) quantify the three-dimensional treatment effect of a Mesialslider appliance using superimposed digital models, (2) to evaluate anchorage loss (measured by incisor displacement), and (3) to assess agreement between two different matching approaches, i.e., control point (CP)-based and iterative closest point (ICP) matching. Methods: In a retrospective study, the effects of a skeletally anchored uni- and bilateral mesialization appliance (Mesialslider) as well as simultaneous mesialization and distalization appliance (Mesio-Distalslider) were evaluated in 48 subjects (aged 11–53 years). Pre- and posttreatment casts were digitized and superimposed with two different approaches, i.e., using ten manually selected control points located at the anterior palate and by means of an automated ICP-matching approach using a standardized palatal reference area. The treatment effects were evaluated using control points on the maxillary central incisors and maxillary molar teeth, and the methods were compared through the application of linear regression analyses and computation of alignment errors. Results: Average upper molar mesialization was 6.3 ± 2.6 mm. Anchorage loss, designated as the mean amount of upper incisor displacement, was less than 0.5 mm in all dimensions investigated. Using the measurement method sufficient registration was possible using both approaches and corresponding tooth movements were significantly correlated (p < 0.01). Conclusions: Accurate measurements of tooth displacement can be performed using both CP- and ICP-based matching approaches. Within the limits of performing a retrospective study, a premolar width of molar mesialization appeared possible without clinically relevant anchorage loss.

AB - Purpose: To (1) quantify the three-dimensional treatment effect of a Mesialslider appliance using superimposed digital models, (2) to evaluate anchorage loss (measured by incisor displacement), and (3) to assess agreement between two different matching approaches, i.e., control point (CP)-based and iterative closest point (ICP) matching. Methods: In a retrospective study, the effects of a skeletally anchored uni- and bilateral mesialization appliance (Mesialslider) as well as simultaneous mesialization and distalization appliance (Mesio-Distalslider) were evaluated in 48 subjects (aged 11–53 years). Pre- and posttreatment casts were digitized and superimposed with two different approaches, i.e., using ten manually selected control points located at the anterior palate and by means of an automated ICP-matching approach using a standardized palatal reference area. The treatment effects were evaluated using control points on the maxillary central incisors and maxillary molar teeth, and the methods were compared through the application of linear regression analyses and computation of alignment errors. Results: Average upper molar mesialization was 6.3 ± 2.6 mm. Anchorage loss, designated as the mean amount of upper incisor displacement, was less than 0.5 mm in all dimensions investigated. Using the measurement method sufficient registration was possible using both approaches and corresponding tooth movements were significantly correlated (p < 0.01). Conclusions: Accurate measurements of tooth displacement can be performed using both CP- and ICP-based matching approaches. Within the limits of performing a retrospective study, a premolar width of molar mesialization appeared possible without clinically relevant anchorage loss.

KW - 3D tooth movement

KW - Incisor stability

KW - Mesialization

KW - Skeletal anchorage

KW - Surface matching

KW - Treatment effects

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U2 - 10.1007/s00056-017-0108-y

DO - 10.1007/s00056-017-0108-y

M3 - Article

VL - 79

SP - 11

EP - 18

JO - Journal of Orofacial Orthopedics

JF - Journal of Orofacial Orthopedics

SN - 1434-5293

IS - 1

ER -