Anterior Open Bite Malocclusion
Conditions
Keywords
extrusion arches, anterior open bite, stability, extrusion, intrusion
Brief summary
This study investigated treatment effects and stability of anterior open bite cases using extrusion arches
Interventions
DEVICEextrusion arch
A stainless steel pre-formed arch wire custom made by placing V-bends 3-5 mm mesial to the molar tubes, placed into the auxiliary molar tubes after leveling phase and tied over the main arch wire distal to the lateral incisors
Sponsors
Alexandria University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
Before and after design
Eligibility
Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes
Inclusion criteria
* adult patients above 18 years anterior open bite 2-6 mm full permanent dentition incisors requiring extrusion
Exclusion criteria
* increased incisal show at rest * gum show at smiling cleft patients patient with tempro-mandibular joint problems FMA angle above 45
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| SNA angle | 18 months | The anteroposterior position of maxillary base to the anterior cranial base. |
| SNB angle | 18 months | The anteroposterior position of mandibular base to the anterior cranial base. |
| ANB angle | 18 months | The anteroposterior position of maxillary base to the mandibular base. |
| SN-MP angle | 18 months | Mandibular plane angle, the angle between the mandibular plane (Go-Me) and anterior cranial base plane (SN). |
| PP-MP angle | 18 months | The angle between palatal plane (ANS-PNS) and mandibular plane. |
| AFH | 18 months | Anterior facial height, the measurement between Nasion (N) and Menton (Me). |
| interincisal angle | 18 months | \- The inner angle between the long axis of the maxillary central incisor and long axis of mandibular central incisor. |
| L1 to MP in mm | 18 months | \- The perpendicular distance between the most anterior mandibular central incisor and mandibular plane. |
| L1 to MP angle | 18 months | The angle between long axis of the most anterior central incisor and the mandibular plane. |
| overbite | 18 months | Vertical distances between the incisal edges of the maxillary and mandibular central incisors, perpendicular to N-Me. |
| U1 to PP angular and linear measurements | 18 months | -The angle and perpendicular distance between long axis of the most anterior upper central incisor and the Palatal plane (ANS-PNS). |
| u6 to pp angle | 18 months | -The angle between the axis between mesial cusp tip and mesiobuccal root apex of the upper first molar and the palatal plane. |
| U6 to PP in mm | 18 months | -The perpendicular distance between the mesial cusp tip of the upper first maxillary molar and the palatal plane. |
| L6 to MP angle | 18 months | The angle between the axis between mesial cusp tip and mesial root apex of the lower first molar and the mandibular plane. |
| L6 to MP in mm | 18 months | The perpendicular distance between mesial cusp tip of the lower first molar and the mandibular plane. |
Countries
Egypt
Outcome results
None listed