Related Experiment Video
Updated: Jul 13, 2026
06:14
Induction of Periodontitis via a Combination of Ligature and Lipopolysaccharide Injection in a Rat Model
Published on: February 17, 2023
Gingival response to mandibular incisor intrusion.
Mustafa Erkan1, Levent Pikdoken, Serdar Usumez
1Gulhane Military Medicine Academy, Haydarpasa Hospital, Branch of Orthodontics, Istanbul, Turkey.
Summary
Orthodontic intrusion of mandibular incisors did not significantly alter attached or keratinized gingiva width. Gingival tissues moved with the teeth, but less, suggesting potential need for follow-up care.
Area of Science:
- Orthodontics
- Periodontology
- Dental Biomechanics
Background:
- Orthodontic intrusion of mandibular incisors is used to correct overbite.
- Assessing gingival changes during this procedure is crucial for patient outcomes.
Purpose of the Study:
- To evaluate gingival movement during orthodontic intrusion of mandibular incisors.
- To assess changes in attached and keratinized gingiva width post-intrusion.
Main Methods:
- 16 subjects underwent orthodontic intrusion of mandibular incisors using the segmented utility arch technique.
- Periodontal indexes and gingival widths were measured before and after treatment.
- Gingival margin and mucogingival junction positions were tracked using radioopacity on cephalograms.
Main Results:
- No statistically significant changes in attached or keratinized gingiva width were observed.
- Gingival margin and mucogingival junction moved with the teeth (79% and 62% respectively).
- A statistically significant decrease in clinical crown length was noted.
Conclusions:
- Orthodontic intrusion does not significantly affect gingival width with good plaque control.
- Gingival tissues exhibit some movement with teeth but lag behind.
- Potential need for post-intrusion follow-up or gingival correction may exist.
