Epidemiological profile of luxations injuries with or without dental fractures in permanent teeth: A 10-years retrospective study

BACKGROUND/AIM

This study assessed the epidemiology of luxation injuries with or without dental fractures in patients attending the outpatient clinic of a Brazilian dental school over the past decade.

MATERIAL AND METHODS

We reviewed clinical records from a specialized center for dental trauma care in Brazil, focusing on patients who experienced at least one traumatic dental injury (TDI) in a permanent tooth between 2012 and 2022. The extracted data included sex, age, etiology, time between trauma occurrence and the search for initial care, TDI classification, and the need for endodontic treatment. The statistical analysis involved Pearson's chi-squared and Fisher's exact tests at a 5% significance level.

RESULTS

The 366 analyzed clinical records included 166 patients (350 teeth) with luxation injuries. Men (n = 102) showed a higher prevalence of luxation injuries than women (n = 64). Extrusive luxation prevailed (n = 99 patients and 208 teeth). Patients with luxation injuries sought care promptly after dental trauma incidents (p = .02) and demonstrated a higher incidence of endodontic treatment (p < .0001) than those without luxation injuries. Lateral luxation was notably associated with traffic accidents (p < .0001). The combination of luxation injuries and tooth fractures did not correlate with a higher need for endodontic treatment (p > .05).

CONCLUSIONS

Age and trauma etiology seemed to have influenced the epidemiological profile of luxation injuries. Additionally, these injuries affected the time to seek initial care and the need for endodontic treatment.

In vitro Dental Discoloration Provoked by Intracanal Calcium Silicate-based Dressing Used for Regenerative Endodontic Procedures: One-Year Spectrometric Analysis

INTRODUCTION

Regenerative endodontic procedures (REP) provide conditions for the continuity of apical formation and increase of the dentin walls thickness, being a useful technique to resume root development of necrotic teeth with incomplete apex. This study aimed to evaluate the coronal discoloration promoted by a new intracanal calcium silicate-based dressing and compare it with other intracanal dressings used in REP.

METHODS

Sixty bovine incisors were prepared to simulate teeth with incomplete apexes, and divided according to the intracanal dressing used: triple antibiotic paste - TAP, double antibiotic paste - DAP, calcium hydroxide associated with 2% chlorhexidine gel, calcium hydroxide associated with saline solution, and Bio-C Temp. As control, no dressing was performed. The intracanal dressings remained in the simulated root canal for 21 days. Luminosity (ΔL) and color difference (ΔE_ab and ΔE₀₀) were evaluated using long-term (1 year) spectrophotometric analysis. The results were analyzed using the ANOVA test with Tukey's post hoc with a significance of 5%.

RESULTS

TAP showed the highest values of ΔE_ab and ΔE₀₀ and lowest values of ΔL (p < .05). Bio-C Temp showed higher ΔE_ab than the other groups from 6 months (p < .05), higher ΔE₀₀ and lower ΔL after one year (p < .05).

CONCLUSIONS

Bio-C Temp induced noticeable coronary discoloration after the one-year analysis.