A study of replanted permanent teeth in different age groups

Area of Science:

• Dentistry
• Oral Surgery
• Pediatric Dentistry

Background:

• Tooth avulsion is a common dental emergency.
• Replantation is a treatment option for avulsed teeth.
• Outcomes can vary based on patient age and tooth development.

Purpose of the Study:

• To evaluate the benefits and outcomes of replanting avulsed permanent teeth.
• To compare results across different age groups: immature teeth, mature teeth in children/adolescents, and mature teeth in adults.
• To identify factors influencing healing and complications after tooth replantation.

Main Methods:

• A cohort of 112 avulsed permanent teeth were replanted.
• Teeth were categorized into three groups based on maturity and patient age.
• Follow-up examinations were conducted after an average of 2.5 years.
• Statistical analysis compared outcomes such as pulpal healing, bone loss, and resorption between groups.

Main Results:

• Pulpal healing was best in immature teeth (A) and poorest in mature teeth in adults (C).
• Replacement resorption was higher in immature (A) and mature pediatric (B) teeth compared to adults (C).
• Alveolar growth inhibition was most pronounced in immature teeth (A).
• Gingival issues like inflammation and retraction were more frequent in mature teeth (B and C).

Conclusions:

• Tooth replantation should be viewed as a temporary measure in children and adolescents.
• The primary benefit for younger patients is the time gained for definitive treatment planning.
• Mature teeth with necrotic periodontal ligaments replanted in pre-pubertal children have a poor prognosis.