Evaluation of Segmented Versus Full Arch Three Dimensionally Printed Transfer Tray for Orthodontic Indirect Bonding

Cairo University (CU)

Status: Unknown

Conditions: Inaccurate Transfer and Bond Failure of Conventional Indirect Bonding Tray; Accuracy of Bracket Transfer and Bond Failure Rate of Full Arch and Segmented Digitally Printed Trays

Treatments: Other: Segmented three dimensionally printed transfer tray

Study type: Interventional

Funder types: Other

Identifiers

NCT03564717

CEBD-CU-2018-04-17

Details and patient eligibility

About

This study is conducted to overcome the problems of conventional indirect bonding technique, through investigating accuracy of two novel three dimensionally digitally printed indirect bonding transfer trays (full arch & segmented) in terms of accuracy of transferring brackets, rate of immediate bond failure and chair side time.

Full description

Fourteen patients (7 in each group) with mild to moderate crowding, requiring orthodontic treatment with full set of permanent teeth including second molars, will be selected for this study. A total of 196 brackets will be used (98 Full Arch Tray and 98 Segment Arch Tray). The same bracket type and bonding material will used in both groups. The accuracy of bracket transfer will be measured by 3 Shape Ortho planner software (Bracket Placement Module), rate of bond failure by counting number of debonded brackets upon tray removal & chair side time by using digital watch.

Enrollment: 132 estimated patients

Sex: All

Ages: 16 to 38 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Patients seeking fixed orthodontic treatment with full set of permanent teeth including second molars.
2. No sex predilection.
3. Mild to moderate crowding cases (4-6 mm).

Exclusion criteria

1. Severely rotated teeth
2. Enamel hypoplasia or hypocalcification.
3. Systemic disease that contraindicates orthodontic treatment.
4. Presence of deep carious lesions or large restorations.
5. No or poor patient's compliance & bad oral hygiene.
6. Psychological problems.

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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132 participants in 2 patient groups

Segmented Three dimensionally printed transfer tray

Experimental group

Treatment:

Other: Segmented three dimensionally printed transfer tray

Full arch three dimensionally printed transfer tray

No Intervention group