Laser Verses Conventional Circumferential Supracrestal Fiberotomy in Orthodontic Extrusion for Crown Lengthening

Cairo University (CU)

Status: Enrolling

Conditions: Orthodontic Extrusion; Circumferential Supracrestal Fiberotomy; Crown Lengthening

Treatments: Procedure: conventional circumferential supracrestal fiberotomy; Procedure: laser circumferential supracrestal fiberotomy

Study type: Interventional

Funder types: Other

Identifiers

NCT06221137

7-12-22

Details and patient eligibility

About

The aim of this study is to the evaluate the stability of the amount of healthy tooth structure exposed after laser versus conventional technique of fiberotomy during orthodontic extrusion.

Full description

Parallel groups, two arm, superiority Randomized Controlled Clinical Trial, with 1:1 allocation.

PICO:

Population: patients with endodontically treated teeth and short clinical crown that require crown lengthening in the esthetic zone Intervention: laser fiberotomy with orthodontic extrusion Control: conventional fiberotomy using blade with orthodontic extrusion

Outcomes:

Primary outcome: Stability of the mount of healthy tooth structure exposed.

Secondary outcomes:

• Stability of gingival Margin reference.
• Stability of the alveolar bone.
• Rate of tooth extrusion.
• Sulcus depth.
• Pain Time: 8 weeks after retention

Enrollment: 20 estimated patients

Sex: All

Ages: 18 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Age between 18 and 50 years old
• Teeth in the esthetic zone
• Restorable teeth with successful endodontic treatment
• Adjacent teeth with clinical attachment of at least two-thirds of the root length, thus permitting adequate support for orthodontic movement
• Crown root ratio after extrusion of the needed ferrule amount not less than 1:1

Exclusion criteria

• Patients with bad oral hygiene or Periodontally affected teeth
• Uncontrolled diabetic patients
• Pregnant females
• Medications that could affect tooth movement (bisphosphonate) radiation therapy less than 2 years
• Moderate-to-heavy daily smokers (who report consuming at least 11 cigarettes/day)
• Teeth with periapical inflammation, ankylosis or vertical root fracture
• Teeth with probability of furcation exposure after extrusion.
• The level of the root is 3 mm or more apical to the level of the bone

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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20 participants in 2 patient groups

conventional circumferential supracrestal fiberotomy

Active Comparator group

Description:

* The amount of tooth that need to be extruded will be measured Bonding brackets slot 0,022"x0.028" Roth prescription on piggyback for the tooth with (0.016". x 0.022 ") stainless steel main arch wire and 0.0014" nickel titanium auxiliary. • Fiberotomy After 2 days of bonding, local anaesthetic solution will be administrated. The depth of the fibrotomy should be equal to the amount of tooth that need to be extruded. * supracrustal fibrotomy will be performed using 15 c blade (Carvalho, Bauer et al. 2006)

Treatment:

Procedure: conventional circumferential supracrestal fiberotomy

laser circumferential supracrestal fiberotomy

Active Comparator group

Description:

* The amount of tooth that need to be extruded will be measured * Bonding brackets slot 0,022"x0.028" Roth prescription * piggyback for the tooth with (0.016". x 0.022 ") stainless steel main arch wire and 0.0014" nickel titanium auxiliary. • Fiberotomy * After 2 days of bonding, local anaesthetic solution will be administrated. * The depth of the fibrotomy should be equal to the amount of tooth that need to be extruded. * A diode laser of 980 nm wavelength will be used The laser tip will be inserted, and incision will be extended around tooth circumference with the system configured to a continuous wave with the movement of the laser tip in an up and down stroking movement The laser tip will be moved in a circumferential manner taking care that all the fibers are lysed.

Treatment:

Procedure: laser circumferential supracrestal fiberotomy