Stability of anterior open bite treatment with molar intrusion using skeletal anchorage: a systematic review and meta-analysis

Espinosa, Daybelis González; Moreira, Paulo Eliezer de Oliveira; Sousa, Amanda Silva da; Flores‐Mir, Carlos; Normando, David

doi:10.1186/s40510-020-00328-2

Cited by 42 publications

(32 citation statements)

References 29 publications

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“…Thus, its long term stability should be anticipated as relapse is often seen within 1 year after treatment. 13 , 27 - 30 Nonetheless, factors related to long-term stability of orthodontically changed vertical dimension, remain to be determined.…”

Section: Discussionmentioning

confidence: 99%

Histological analysis on tissues around orthodontically intruded maxillary molars using temporary anchorage devices: A case report

Tsai

Chang

et al. 2023

Korean J Orthod

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Before progress was recently made in the application of temporary anchorage devices (TADs) in bio-mechanical design, orthodontists were rarely able to intrude molars to reduce upper posterior dental height (UPDH). However, TADs are now widely used to intrude molars to flatten the occlusal plane or induce counterclockwise rotation of the mandible. Previous studies involving clinical or animal histological evaluation on changes in periodontal conditions after molar intrusion have been reported, however, studies involving human histology are scarce. This case was a Class I malocclusion with a high mandibular plane angle. Upper molar intrusion with TADs was performed to reduce UPDH, which led to counterclockwise rotation of the mandible. After 5 months of upper molar intrusion, shortened clinical crowns were noticed, which caused difficulties in oral hygiene and hindered orthodontic tooth movement. The mid-treatment cone-beam computed tomography revealed redundant bone physically interfering with buccal attachment and osseous resective surgeries were followed. During the surgeries, bilateral mini screws were removed and bulging alveolar bone and gingiva were harvested for biopsy. Histological examination revealed bacterial colonies at the bottom of the sulcus. Infiltration of chronic inflammatory cells underneath the non-keratinized sulcular epithelium was noted, with abundant capillaries being filled with red blood cells. Proximal alveolar bone facing the bottom of the gingival sulcus exhibited active bone remodeling and woven bone formation with plump osteocytes in the lacunae. On the other hand, buccal alveolar bone exhibited lamination, indicating slow bone turnover in the lateral region.

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Section: Discussionmentioning

confidence: 99%

Histological analysis on tissues around orthodontically intruded maxillary molars using temporary anchorage devices: A case report

Tsai

Chang

et al. 2023

Korean J Orthod

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“…Aufgrund des ausgeprägten Rezidivpotentials der Molarenintrusion von 10–30% 8 , wurde eine Überkorrektur von 1 mm in der Vertikalen durchgeführt und die Mini-Implantate auch während der Retentionsphase von einem Jahr belassen. Während dieser Retentionsphase trug die Patienten nachts eine thermoplastische Retentionsschiene (1,0 mm Copyplast) und Gummizüge (3.5 Oz, 3/16) ( Abb.…”

Section: Strategienunclassified

Troubleshooting in der Kieferorthopädie: Strategien zur Überwindung von Limitationen in der Kieferorthopädie

Sabbagh,

Sabbagh

2023

Informationen aus Orthodontie & Kieferorthopädie

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ZusammenfassungTrotz neuer innovativer Apparaturen und aller Weiterentwicklungen kieferorthopädischer Mechaniken bestehen insbesondere bei der Behandlung atypischer oder ausgeprägter dentaler und skeletaler Fehlstellungen weiterhin Limitationen in der Behandlung sowohl mit festsitzenden Apparaturen als auch mit den Alignern.Auch die Behandlung von Patientinnen und Patienten mit mangelnder Therapieadhärenz ist eine tägliche Herausforderung, die häufig die Anwendung einer kooperationsunabhängigen Technik erfordert.Dieser Artikel beschreibt diverse praxisgerechte Strategien zur Überwindung von technischen, funktionellen und interdisziplinären Einschränkungen.

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“…However, in unfavorable skeletal patterns, an orthognathic surgery is suggested as the most appropriate approach [ 10 , 11 ]. A variety of fixed or removable appliances have been implemented for the orthodontic management of open bite [ 12 – 14 ], yet their effectiveness regarding long-time treatment outcomes is rather controversial [ 2 , 15 – 18 ].…”

Section: Introductionmentioning

confidence: 99%

Long-term effectiveness of non-surgical open-bite treatment: a systematic review and meta-analysis

Theodoridou,

Zarkadi,

Zymperdikas

et al. 2023

Prog Orthod.

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Background The etiology of open bite is complex, involving various genetic or environmental factors. Several treatment alternatives have been suggested for the correction of open bite, yet their long-term effectiveness remains controversial. Objective To assess the long-term effectiveness of open-bite treatment in treated with non-surgical approaches versus untreated patients, through lateral cephalometric radiographs. Search methods Unrestricted search of 16 electronic databases and manual searches up to November 2022. Selection criteria Randomized or non-randomized controlled trials reporting on the long-term effects of open-bite treatment through angular lateral cephalometric variables. Data collection and analysis Only angular variables on lateral cephalometric radiographs were considered as primary outcomes. For each outcome, the mean differences and 95% confidence intervals were calculated using the random-effects model to consider existing heterogeneity. The revised Cochrane risk-of-bias tool (R.o.B. 2.0) and the risk-of-bias tool for non-randomized studies for interventions (ROBINS-I) were utilized for the randomized and non-randomized trials, respectively. Results From the initially identified 26,527 hits, only 6 studies (1 randomized and 5 retrospective controlled trials) were finally included in this systematic review reporting on 244 open-bite individuals (134 patients and 110 untreated controls), while five of them were included in the meta-analyses, assessing either the interval ranging from treatment start to post-retention (T3–T1) or from end of treatment to post-retention period (T3–T2). Regarding the vertical plane, for the T3–T2 interval, no significant differences were found for the assessed skeletal measurements, indicating a relative stability of the treatment results. Similarly, with regard to the T3–T1 interval, no significant differences could be identified for the examined skeletal variables, implying that the produced effects are rather minimal and that the correction of the open bite was performed mainly through dentoalveolar rather than skeletal changes. Further, no significant changes could be identified regarding the inclination of the upper and lower incisors. Only the nasolabial angle was significantly reduced in the treated patients in the long term. Conclusions According to existing evidence, the influence of non-surgical treatment of open bite on the skeletal tissues and the inclination of the incisors is rather minimal in the long term, while only the nasolabial angle was significantly reduced.

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Stability of anterior open bite treatment with molar intrusion using skeletal anchorage: a systematic review and meta-analysis

Cited by 42 publications

References 29 publications

Histological analysis on tissues around orthodontically intruded maxillary molars using temporary anchorage devices: A case report

Histological analysis on tissues around orthodontically intruded maxillary molars using temporary anchorage devices: A case report

Troubleshooting in der Kieferorthopädie: Strategien zur Überwindung von Limitationen in der Kieferorthopädie

Long-term effectiveness of non-surgical open-bite treatment: a systematic review and meta-analysis

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