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Orthodontic Extraction Effects on Upper Airway Size and Skeletal Patterns: a Consecutive Case Analysis of Young Patients

Orthodontic Extraction Effects on the Upper Airway Size and Surrounding Tissues

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR-RRC-17013240
Enrollment
Unknown
Registered
2017-11-04
Start date
2009-01-01
Completion date
Unknown
Last updated
2017-11-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obstructive sleep apnea

Interventions

Extraction Group:None
Non-extraction Group:None

Sponsors

Peking University School and Hospital of Stomatology
Lead Sponsor

Eligibility

Sex/Gender
All
Age
11 Years to 30 Years

Inclusion criteria

Inclusion criteria: (1) permanent dentition at the start of treatment; (2) no missing teeth except for the third molars; (3) had undergone the treatment with fixed appliances.;Inclusion criteria: (1) permanent dentition at the start of treatment; (2) no missing teeth except for the third molars; (3) had undergone the treatment with fixed appliances.;Inclusion criteria: (1) permanent dentition at the start of treatment; (2) no missing teeth except for the third molars; (3) had undergone the treatment with fixed appliances.;Inclusion criteria: (1) permanent dentition at the start of treatment; (2) no missing teeth except for the third molars; (3) had undergone the treatment with fixed appliances.;Inclusion criteria: (1) permanent dentition at the start of treatment; (2) no missing teeth except for the third molars; (3) had undergone the treatment with fixed appliances.

Exclusion criteria

Exclusion criteria: (1) body mass index (BMI) >25 kg/m2; (2) combined treatment with palatal expansion, functional appliances or orthognathic surgery; (3) has medical history of cleft lip or palate, hyperplasia of adenoid or tonsils, snoring, chronic mouth breathing, or temporomandibular disorders.;Exclusion criteria: (1) body mass index (BMI) >25 kg/m2; (2) combined treatment with palatal expansion, functional appliances or orthognathic surgery; (3) has medical history of cleft lip or palate, hyperplasia of adenoid or tonsils, snoring, chronic mouth breathing, or temporomandibular disorders.;Exclusion criteria: (1) body mass index (BMI) >25 kg/m2; (2) combined treatment with palatal expansion, functional appliances or orthognathic surgery; (3) has medical history of cleft lip or palate, hyperplasia of adenoid or tonsils, snoring, chronic mouth breathing, or temporomandibular disorders.;Exclusion criteria: (1) body mass index (BMI) >25 kg/m2; (2) combined treatment with palatal expansion, functional appliances or orthognathic surgery; (3) has medical history of cleft lip or palate, hyperplasia of adenoid or tonsils, snoring, chronic mouth breathing, or temporomandibular disorders.;Exclusion criteria: (1) body mass index (BMI) >25 kg/m2; (2) combined treatment with palatal expansion, functional appliances or orthognathic surgery; (3) has medical history of cleft lip or palate, hyperplasia of adenoid or tonsils, snoring, chronic mouth breathing, or temporomandibular disorders.

Design outcomes

Primary

MeasureTime frame
PNS-R;PNS-UPW;SPP-SPPW;U-MPW;PAS;V-LPW;—

Countries

China

Contacts

Public ContactXuemei Gao;Xuemei Gao;Xuemei Gao;Xuemei Gao;Xuemei Gao ;;;;

Peking University School and Hospital of Stomatology;Peking University School and Hospital of Stomatology;Peking University School and Hospital of Stomatology;Peking University School and Hospital of Stomatology;Peking University School and Hospital of Stomatology

xmgao@263.net;xmgao@263.net;xmgao@263.net;xmgao@263.net;xmgao@263.net+86 010 82195350;+86 010 82195350;+86 010 82195350;+86 010 82195350;+86 010 82195350

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026