Twin Block appliance with acrylic capping does not have a significant inhibitory effect on lower incisor proclination

Mark Cornelis van der Plas; Krista Ingeborg Janssen; Nikolaos Pandis; Christos Livas

doi:10.2319/102916-779.1

Twin Block appliance with acrylic capping does not have a significant inhibitory effect on lower incisor proclination

Mark Cornelis van der Plas
, Krista Ingeborg Janssen
, Nikolaos Pandis
, Christos Livas^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

20 Citations (Scopus)

Abstract

Objective: To investigate the effect of acrylic capping, treatment duration, overjet, and lower incisor inclination on the posttreatment tooth position in patients treated with 2 Twin Block (TB) appliance versions.

Materials and Methods: Cephalograms of 56 patients with Class II malocclusion (21 boys, 35 girls; mean age before treatment [T1] = 12.5 years; standard deviation, 0.7) treated with a TB appliance with either acrylic capping or ball-ended clasps on lower incisors were retrospectively collected and traced. Lower incisor inclination (L1-GoGn, L1-GoMe, L1-MP) was measured at T1 and after TB appliance removal (T2). Regression analysis was performed to evaluate the effect on the lower incisor inclination of appliance type, overjet, lower incisor inclination at T1, and treatment duration after adjusting for baseline measurements.

Results: Appliance design was not a significant predictor for either incisor inclination measurement (P

Conclusions: TB appliance design with acrylic capping on lower incisors appears not to significantly control incisor proclination. Pretreatment lower incisor inclination may be significantly associated with tooth inclination after active TB treatment and should be considered in treatment planning.

Original language	English
Pages (from-to)	513-518
Number of pages	6
Journal	Angle Orthodontist
Volume	87
Issue number	4
DOIs	https://doi.org/10.2319/102916-779.1
Publication status	Published - Jul-2017

Keywords

Twin Block
Lower incisor
Class II treatment
1 MANDIBULAR RETROGNATHY
CLASS-II MALOCCLUSIONS
ORTHODONTIC TREATMENT
GINGIVAL RECESSION
HERBST APPLIANCES
SKELETAL
BIONATOR

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@article{55f5c33319dc4fc690b288bc416449b1,

title = "Twin Block appliance with acrylic capping does not have a significant inhibitory effect on lower incisor proclination",

abstract = "Objective: To investigate the effect of acrylic capping, treatment duration, overjet, and lower incisor inclination on the posttreatment tooth position in patients treated with 2 Twin Block (TB) appliance versions.Materials and Methods: Cephalograms of 56 patients with Class II malocclusion (21 boys, 35 girls; mean age before treatment [T1] = 12.5 years; standard deviation, 0.7) treated with a TB appliance with either acrylic capping or ball-ended clasps on lower incisors were retrospectively collected and traced. Lower incisor inclination (L1-GoGn, L1-GoMe, L1-MP) was measured at T1 and after TB appliance removal (T2). Regression analysis was performed to evaluate the effect on the lower incisor inclination of appliance type, overjet, lower incisor inclination at T1, and treatment duration after adjusting for baseline measurements.Results: Appliance design was not a significant predictor for either incisor inclination measurement (PConclusions: TB appliance design with acrylic capping on lower incisors appears not to significantly control incisor proclination. Pretreatment lower incisor inclination may be significantly associated with tooth inclination after active TB treatment and should be considered in treatment planning.",

keywords = "Twin Block, Lower incisor, Class II treatment, 1 MANDIBULAR RETROGNATHY, CLASS-II MALOCCLUSIONS, ORTHODONTIC TREATMENT, GINGIVAL RECESSION, HERBST APPLIANCES, SKELETAL, BIONATOR",

author = "\{van der Plas\}, \{Mark Cornelis\} and Janssen, \{Krista Ingeborg\} and Nikolaos Pandis and Christos Livas",

year = "2017",

month = jul,

doi = "10.2319/102916-779.1",

language = "English",

volume = "87",

pages = "513--518",

journal = "Angle Orthodontist",

issn = "0003-3219",

publisher = "E H ANGLE EDUCATION RESEARCH FOUNDATION, INC",

number = "4",

}

TY - JOUR

T1 - Twin Block appliance with acrylic capping does not have a significant inhibitory effect on lower incisor proclination

AU - van der Plas, Mark Cornelis

AU - Janssen, Krista Ingeborg

AU - Pandis, Nikolaos

AU - Livas, Christos

PY - 2017/7

Y1 - 2017/7

N2 - Objective: To investigate the effect of acrylic capping, treatment duration, overjet, and lower incisor inclination on the posttreatment tooth position in patients treated with 2 Twin Block (TB) appliance versions.Materials and Methods: Cephalograms of 56 patients with Class II malocclusion (21 boys, 35 girls; mean age before treatment [T1] = 12.5 years; standard deviation, 0.7) treated with a TB appliance with either acrylic capping or ball-ended clasps on lower incisors were retrospectively collected and traced. Lower incisor inclination (L1-GoGn, L1-GoMe, L1-MP) was measured at T1 and after TB appliance removal (T2). Regression analysis was performed to evaluate the effect on the lower incisor inclination of appliance type, overjet, lower incisor inclination at T1, and treatment duration after adjusting for baseline measurements.Results: Appliance design was not a significant predictor for either incisor inclination measurement (PConclusions: TB appliance design with acrylic capping on lower incisors appears not to significantly control incisor proclination. Pretreatment lower incisor inclination may be significantly associated with tooth inclination after active TB treatment and should be considered in treatment planning.

AB - Objective: To investigate the effect of acrylic capping, treatment duration, overjet, and lower incisor inclination on the posttreatment tooth position in patients treated with 2 Twin Block (TB) appliance versions.Materials and Methods: Cephalograms of 56 patients with Class II malocclusion (21 boys, 35 girls; mean age before treatment [T1] = 12.5 years; standard deviation, 0.7) treated with a TB appliance with either acrylic capping or ball-ended clasps on lower incisors were retrospectively collected and traced. Lower incisor inclination (L1-GoGn, L1-GoMe, L1-MP) was measured at T1 and after TB appliance removal (T2). Regression analysis was performed to evaluate the effect on the lower incisor inclination of appliance type, overjet, lower incisor inclination at T1, and treatment duration after adjusting for baseline measurements.Results: Appliance design was not a significant predictor for either incisor inclination measurement (PConclusions: TB appliance design with acrylic capping on lower incisors appears not to significantly control incisor proclination. Pretreatment lower incisor inclination may be significantly associated with tooth inclination after active TB treatment and should be considered in treatment planning.

KW - Twin Block

KW - Lower incisor

KW - Class II treatment

KW - 1 MANDIBULAR RETROGNATHY

KW - CLASS-II MALOCCLUSIONS

KW - ORTHODONTIC TREATMENT

KW - GINGIVAL RECESSION

KW - HERBST APPLIANCES

KW - SKELETAL

KW - BIONATOR

U2 - 10.2319/102916-779.1

DO - 10.2319/102916-779.1

M3 - Article

C2 - 28128634

SN - 0003-3219

VL - 87

SP - 513

EP - 518

JO - Angle Orthodontist

JF - Angle Orthodontist

IS - 4

ER -

Twin Block appliance with acrylic capping does not have a significant inhibitory effect on lower incisor proclination

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