PREMOLAR EXTRACTION'S IMPACT ON MANDIBULAR ROTATION

Pramod  Kumar; Arpita  Shekhar; Ritika; Vikramjet

doi:10.51168/sjhrafrica.v6i6.1711

Authors

Pramod Kumar Senior Resident, Department of Dentistry, Jawaharlal Nehru Medical College and Hospital, Bhagalpur, Bihar, India
Arpita Shekhar Senior Resident, Department of Dentistry, Jawaharlal Nehru Medical College and Hospital, Bhagalpur, Bihar, India
Ritika PG Student 2nd year, Department of Orthodontics, Indira Gandhi Dental College, Amphala Jammu, Jammu and Kashmir, India
Vikramjet Senior Resident, Department of Dentistry, Jawaharlal Nehru Medical College and Hospital, Bhagalpur, Bihar, India

DOI:

https://doi.org/10.51168/sjhrafrica.v6i6.1711

Keywords:

Planmeca proline XC, Orthodontics, Cephalograms, Molar extraction, Mandibular function

Abstract

Background

In orthodontics, premolar extraction is a frequent therapeutic method. Premolar extraction is justified by the need to make room for crowded teeth to be realigned and, more specifically, for a camouflage treatment of class II malocclusion. It is normal procedure to extract all first premolars as part of fixed orthodontic treatment in order to create room for proclination correction or crowding relief. The goal of orthodontic mechanics should be to prevent posterior teeth from extruding and to intrude of anterior teeth.

Objectives- This study compared the mandibular rotation changes of subjects who had all of their first premolars extracted after receiving fixed orthodontic treatment.

Materials and Methods

The samples were chosen only after the course of treatment was finished because the study was retrospective in nature. Based on patient information from Department of Dentistry,Jawaharlal Nehru Medical College and Hospital (JNMCH), Bhagalpur, Bihar, India.Two years' worth of data, from January 2023 to January 2025, have been collected. Twenty participants' data were collected.

Results

A p-value of 0.02 indicated that the ratio between pre- and post-treatment was statistically significant. On the days of SN-Go-GN, Frankfort-mandibular plane angle (FMA), anterior facial height (AFH), and posterior facial height (PFH), no discernible variations were found between them, respectively.

Conclusion

The study found that there was no discernible change in the FMA or SN-GoGn angle between the pre- and post-tests. There were a few differences in anterior and posterior facial height before and after therapy. Jaraback's ratio did not significantly change before or after treatment. To maintain the vertical dimension stable, it might be proposed that the proper mechanics, as per growing rotation, must be adhered to.

Recommendations

To see changes before and after therapy, more research with a bigger sample size that is split according to growth pattern is required.

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