Naveen Kumar Krishna1, Azeem Farhan2, Rashmi Issar3, Shashikala Subramanian4, Manju Prasad Muniyappa5, Shashi Ranjan6, Priyankar Singh7, Kumar Tathagat Singh8. 1. Professor, Department of Orthodontics, KGF College of Dental Sciences , Kolar, Karnataka, India . 2. Ex. Professor, Department of Orthodontics, Private Practice, India . 3. Reader, Department of Conservative Dentistry & Endodontics, Patna Dental College , Patna, Bihar, India . 4. Professor and Head, Department of Orthodontics, KGF College of Dental Sciences , Kolar, Karnataka, India . 5. Senior Lecturer, Department of Orthodontics, Vydehi Institute of Dental Sciences , Bangalore, Karnataka, India . 6. Reader, Department of Oral & Maxillofacial Pathology, Private Practice, Buddha Dental College , Patna, Bihar, India . 7. Senior Resident, Department of Oral & Maxillofacial Surgery, Indira Gandhi Institute Of Medical Sciences , Patna, Bihar, India . 8. Reader, Department of Oral & Maxillofacial Surgery, B.R. Ambedkar Institute of Dental Sciences & Hospital , Patna, Bihar, India .
Abstract
INTRODUCTION: The pre-adjusted brackets are available in various prescriptions and sizes; nevertheless there are still many controversies as to which pre-adjusted edgewise bracket offers the maximum clinical efficiency. AIM: This study was conducted to determine and compare the amount of lower incisor proclination during de-crowding if any of the Mini-Uni Twin Brackets with that of the standard double width brackets. MATERIALS AND METHODS: A total of 20 patients i.e., 10 patients in each group both males and females were randomly selected for the study from subjects seeking treatment, the selected samples were grouped as follows. Group I - Double Width Brackets (3M Unitek Gemini Series) 0.018" slot with Roth prescription. Group II - Mini Uni-Twin Bracket (3M Unitek) 0.018" slot with Roth prescription. RESULTS: The Mini-Uni Twin Brackets had statistically significant (p = 0.01) amount of proclination of the lower anteriors (0.8(o)± 0.3(o)) after de-crowding as compared to the standard Double Width Brackets and since the mean change in the Incisor Mandibular Plane Angle (IMPA) was lesser than 1(o), its clinical significance could be questionable. CONCLUSION: The Mini Uni Twin brackets are comparatively efficient in the lower anterior decrowding but further comparative clinical studies need to be performed on these Mini Uni Twin brackets, with an increase in the sample size and also the number of parameters to prove its total clinical efficiency.
INTRODUCTION: The pre-adjusted brackets are available in various prescriptions and sizes; nevertheless there are still many controversies as to which pre-adjusted edgewise bracket offers the maximum clinical efficiency. AIM: This study was conducted to determine and compare the amount of lower incisor proclination during de-crowding if any of the Mini-Uni Twin Brackets with that of the standard double width brackets. MATERIALS AND METHODS: A total of 20 patients i.e., 10 patients in each group both males and females were randomly selected for the study from subjects seeking treatment, the selected samples were grouped as follows. Group I - Double Width Brackets (3M Unitek Gemini Series) 0.018" slot with Roth prescription. Group II - Mini Uni-Twin Bracket (3M Unitek) 0.018" slot with Roth prescription. RESULTS: The Mini-Uni Twin Brackets had statistically significant (p = 0.01) amount of proclination of the lower anteriors (0.8(o)± 0.3(o)) after de-crowding as compared to the standard Double Width Brackets and since the mean change in the Incisor Mandibular Plane Angle (IMPA) was lesser than 1(o), its clinical significance could be questionable. CONCLUSION: The Mini Uni Twin brackets are comparatively efficient in the lower anterior decrowding but further comparative clinical studies need to be performed on these Mini Uni Twin brackets, with an increase in the sample size and also the number of parameters to prove its total clinical efficiency.