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The goal of this split mouth, randomised control study was to compare the clinical effectiveness of surface treated Calcium Chloride orthodontic mini implant in orthodontic patients. The main question[s] it aimed to answer were:
Does the clinical effectiveness based on overall stability in maximum insertion torque and maximum removal torque measurement vary between untreated surface OMI, treated surface OMI with acid etching only and treated surface OMI with acid etching and calcium chloride immersion?, Does the surface roughness of OMI surface post removal vary between untreated surface OMI, treated surface OMI with acid etching only and treated-surface MI with acid etching and calcium chloride immersion? Does the success rate vary between untreated surface OMI, treated surface OMI with acid etching only and treated surface OMI with acid etching and calcium chloride immersion?Does the oral health quality of life and pain vary between untreated surface OMI, treated surface OMI with acid etching only and treated surface OMI with acid etching and calcium chloride immersion? Participants who is eligible for the study , orthodontic patient requiring moderate to high anchorage will be allocated to 2 groups (Group 1 : calcium chloride and control, Group 2 : acid etch, and control) to be used during the orthodontic treatment. The intervention is calcium chloride; the Calcium Chloride, positive control is the acid-etched and control is the machined group OMI. Comparison of the maximum insertion and removal torque, oral health quality of life, success rate and the surface roughness between the different groups of OMI.
Full description
1.1 Study Design A triple-blinded, three-arm parallel-group randomized controlled trial was conducted at a single center. The trial assesses the effectiveness of an intervention through a split-mouth clinical study design.
1.2 Study Duration This study was carried out from January 2023 until March 2024.
1.3 Ethical Approval Ethical approval (REC/09/2021(FB/56) dated 17 December 2021 was obtained from the Universiti Teknologi MARA Research Ethics Committee (UiTM REC) to carry out the study at Tourmaline Postgraduate Dental Clinic, Faculty of Dentistry, UiTM. This study was conducted by following the ICH Clinical Practice Guidelines, Malaysia Good Clinical Practice Guidelines and the Declaration of Helsinki. (Appendix 1). Informed consent procedures were detailed, outlining participant recruitment methods and the process by which participants were informed about the study's purpose, risks, benefits, confidentiality measures, and their right to withdraw.
1.4 Reference Population Orthodontic patients requiring fixed appliance treatment involving extractions of at least one premolar in each quadrant with moderate to high anchorage demand.
1.5 Source Population Registered patient attending clinics in Faculty of Dentistry UiTM who require fixed appliance with moderate to high anchorage demand.
1.6 Sample calculation The sample size calculation was done by using G-power analysis (version 3.1.9.7) based on objectives and the findings of the related studies
1.7 Randomisation and allocation Were done in 2 stages, first stage was to allocate the patient into group 1 ( calcium chloride and control) Group 2 ( acid etch and control). Following that, patient were checked for dominant chewers, and to undergo randomisation for allocation of left and right.
Allocation were randomised by block of two for first and second stage.
1.8 Blinding Patient, clinician and statistician were blinded.
1.9 Preparation of OMI OMI will be sterilised first, and immersed in hydrochloric acid at 65°C for 20 minutes, and to be dried in oven. For acid etch, the OMI will be stored in the vacuum sealed vial. For calcium chloride, it will be immersed in 1.0M Calcium Chloride in 4°C storage.
1.10 Clinical 1.4mmx 8mm OMI was inserted between maxillary first molar and second premolar by 2 experienced and callibrated clinician (MMD and MNMS) OMI was inserted 10mm from the bracket slot and tied with metal ligature to maxillary first molar and second premolar as indirect anchorage during treatment. OMI will be removed once the canine is already in class I. Maximum insertion torque is measured by MTT03-50ZU (Mark-10, Copiague,NY.
At day 1,7 and month 3 after insertion, OHIP-14 will be administered via google form to evaluate patient's quality of life. At month 1, 3 and 6, the success of the OMI will be assessed. Success is defined as the ability to maintain the anchorage . Maximum removal torque ( using MTT03-50ZU (Mark-10, Copiague,NY,) is measured after canines are in class I.
1.11 Following removal of the OMI The OMI is assessed under the scanning electron microscop (SEM)
1.12 Statistical analysis Analysis is depending on the distribution of data.
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48 participants in 3 patient groups
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Data sourced from clinicaltrials.gov
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