Bone Metabolism in Patients Treated With 3d Printed Aligners Versus Thermoformed Aligners

Bone Metabolism in Patients Treated With 3d Printed Aligners Versus Thermoformed Aligners (Randomized Controlled Clinical Trial)

Background: Orthodontic forces induce tissue reactions by triggering perturbations from orthodontic appliances, which lead to the modelling and remodelling of alveolar bone. Despite the growing popularity of 3D-printed aligners, no studies have compared their effects on bone metabolism in comparison with thermoformed aligners. Aim: This study aims to assess bone metabolism in patients undergoing treatment with 3D-printed aligners versus thermoformed aligners.

Inclusion Criteria:

• Minor malocclusion (2 to 4 mm of crowding) .
• Patients in need for Antero-posterior expansion and labial tipping of incisors without interproximal reduction
• No use of anti-inflammatory drugs or antibiotics in the past 6 months.
• Periodontal parameters of gingival index <1 and no pocketing with a generalized pocketing depth of <3mm.
• Radiographic parameters of no crestal bone loss.
• No history of smoking.

Exclusion Criteria:

• Signs of inflammation of the gingiva, and periodontitis.
• Systemic conditions (kidney disease, HIV, and liver disease).
• Teeth missing or poor oral hygiene.
• Bone disease e.g.; osteoporosis.