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Original Research

Open Access

Clinical evaluation of resorbable polylactic acid (PLA) intracanal posts for primary incisor restoration. Randomized controlled clinical trial

  • Hua Xu1
  • Xuefang Chen1
  • Junrong Wang2
  • Qian Zou1
  • Fengna Qi1
  • Xiaolan Ma1,*,

1Department of Oral Medicine, Hebei Eye Hospital, 054001 Xingtai, Hebei, China

2Department of Oral and Maxillofacial Surgery, Hebei Eye Hospital, 054001 Xingtai, Hebei, China

DOI: 10.22514/jocpd.2024.039 Vol.48,Issue 2,March 2024 pp.102-110

Submitted: 02 February 2023 Accepted: 16 August 2023

Published: 03 March 2024

*Corresponding Author(s): Xiaolan Ma E-mail: maxiaolan@stu.hebmu.edu.cn

Abstract

This randomized, controlled clinical trial compares the clinical performance of glass-fibre and resorbable polylactic acid (PLA) intracanal posts used to restore carious primary incisors in young patients. The study sample includes 180 primary upper central incisors of 90 children aged 3 to 4 years. All patients were randomly divided into two equal groups of 45 children who received PLA and glass-fibre (GFP) intracanal posts. The clinical assessment of incisor restorations was carried out immediately upon completion and at months 3, 6 and 12 according to the following criteria: anatomical form, marginal adaptation, surface roughness, marginal pigmentation, colour match, secondary caries and contact point. The Gingival Index (GI), the Bleeding Index (Cowell modification; mBI), and bite force (BF) were measured. At the 3-month follow-up, the occlusal BF of patients who received PLA posts was higher than the baseline; the GI and mBI scores were lower, by contrast (p < 0.05). This tendency was even more pronounced 6 and 12 months after the restoration. The incidence of side effects or symptoms (apical inflammation, cervical fracture, loosening of the crown) after the PLA posts was significantly lower than after the GFP (p < 0.05). No statistically significant differences were present between the two groups with respect to colour matching, anatomical form, marginal adaptation, marginal pigmentation, surface roughness, occlusal contact and secondary caries. Based on the results, applying PLA intracanal posts and cyanoacrylate to residual anterior crowns in young children can improve their gingival health, reduce side effects, and increase the likelihood of successful restoration.


Keywords

Pediatric dentistry; Caries; Coronal restoration; Glass-fibre post; Polylactic acid resorbable root post


Cite and Share

Hua Xu,Xuefang Chen,Junrong Wang,Qian Zou,Fengna Qi,Xiaolan Ma. Clinical evaluation of resorbable polylactic acid (PLA) intracanal posts for primary incisor restoration. Randomized controlled clinical trial. Journal of Clinical Pediatric Dentistry. 2024. 48(2);102-110.

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