Smile Arc Assessment in Orthodontic Patients Following Smile Arc Protection VS MBT Placement Guide Bonding Strategies

Smile Arc Assessment in Orthodontic Patients Following Smile Arc Protection Versus MBT Placement Guide Bonding Strategies: A Randomized Clinical Trial.

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05277506

Enrollment

Registered

2022-03-14

Start date

2022-01-10

Completion date

2022-09-30

Last updated

2022-03-14

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

Conditions

Orthodontic Appliance Complication

Brief summary

The study will be performed on human subjects undergoing orthodontic treatment to correct mild crowding with both techniques enhancing the final smile characteristics of the patients.

Detailed description

The study concisits of two groups, the intervention group entails performing bonding of orthodontic brackets following smile arc protection bonding strategy while the control group entails performing bonding using the MBT placement guide and comparing the final smile outcomes after reaching steel archwires for both groups using customized questionnaires for orthodontists and laypersons.

Interventions

DEVICE18 inch slot MBT orthodontic brackets bonded using smile arc protection bonding strategy

female patients with mild crowding will recieve orthodontic brackets bonding using smile arc protection bonding strategy

DEVICE18 inch slot MBT orthodontic brackets boned using MBT placement guide

female patients with mild crowding will recieve orthodontic brackets bonding using MBT placement guide bonding strategy

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender

FEMALE

Age

16 Years to 30 Years

Healthy volunteers

Yes

Inclusion criteria

* female patients * no/mild/moderate crowding or spacing * non-extraction treatment decision with non-extraction profile * adults age 16-30 years * full permanent dentition including fully erupted 7s not necessarily 8s * good oral hygiene.

Exclusion criteria

* severe crowding * cleft lip and palate/syndromic patients * bad oral hygiene * unerupted or partially erupted 7s * extracted or missing teeth

Design outcomes

Primary

Measure	Time frame	Description
smile arc assessment by orthodontists	6 months follow up	subjective assessment of the beauty of the smile using close up photographs and questionnaires filled by orthodontists and graded scale from 0-10

Secondary

Measure	Time frame	Description
smile arc analysis using frontal extraoral photographs of the posed smile	6 months follow up	analysis in millimeters for anthropometric measurements

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026