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Stomatologija 2010; 12 (4): 109-115 70 KB

Analysis of the crown fractures and factors affecting pulp survival due to dental trauma

Ilona Viduskalne, Ruta Care

Summary

Objectives. The aim of the present study was to investigate pulp survival following crown fracture with and without pulp exposure as well as with and without associated subluxation and in relation to stage of root development and type of enamel-dentine fracture.

Materials and methods. This study consisted of 83 patients with 116 crown fractured incisors without pulp exposure and 35 patients with 44 complicated crown fractures. The effect of variables on the maintenance of tooth vitality were explored using the Linear Regression analysis , which assumes the effects of different factors on the pulp vitality such as (age, stage of the root development, contaminant subluxation, fracture depth, emergency treatment).

Results. The general distribution was 59 (71%) boys and 24 (29%) girls with uncomplicated crown fractures aged 7-17 years, mean 10.7 years ±2.83SD and 24 (68.5%) boys and 11 (31%) girls with complicated crown fracture. From 78 uncomplicated crown fractures without subluxation PN (pulp necrosis) was evaluated in 4 (4.88%) cases but from 20 uncomplicated crown fractures with subluxation PN was 14 (56.52%) cases.

Univariate analysis showed that stage of root development p<0.05, subluxation p<0.001, fracture depth p<0.001 were significantly related to the pulp survival.

Conclusions. The primary factors related to pulp healing events after crown fracture appears to be compromised pulp circulation due to concomitant subluxation as well as the stage of root development and fracture depth.

For incisors with complicated crown fractures there were two more factors related to pulpal healing-time interval from injury until initial treatment and appropriate emergency treatment.

Key words: permanent teeth eruption, general factors, influence.

Received: 20 10 2009

Accepted for publishing: 28 12 2010

*Department of Conservative dentistry , Riga Stradins University, Riga, Latvia

Ilona Viduskalne* – D.D.S.

Ruta Care* – D.D.S., prof.

Address correspondence to: Dr. Ilona Viduskalne, Lašu 5-67, Jūrmala LV-2010, Latvia.

E-mail address: ilona.viduskalne@apollo.lv



	Baltic Dental and Maxillofacial Journal

December, 2010, Vol. 12, No. 4 CONTENTS REVIEW Today’s understanding about bone aging Maris Grzibovskis, Mara Pilmane, Ilga Urtane 99-104 SCIENTIFIC ARTICLES Epidemiologic factors causing cleft lip and palate and their regularities of occurrence in Estonia Triin Jagomagi, Marianne Soots, Mare Saag 105-108 Analysis of the crown fractures and factors affecting pulp survival due to dental trauma Ilona Viduskalne, Ruta Care 109-115 Microflora of root filled teeth with apical periodontitis in Latvian patients Anda Mindere, Rita Kundzina, Vizma Nikolajeva, Daina Eze, Zaiga Petrina 116-121 CLINICAL CASE REPORTS An expanded odontogenic myxoma in maxilla Bruno Ramos Chrcanovic, Márcio Bruno Figueiredo do Amaral, Helenice de Andrade Marigo, Belini Freire-Maia 122-128 © 2010 Stomatologija		Stomatologija 2010; 12 (4): 109-115 70 KB Analysis of the crown fractures and factors affecting pulp survival due to dental trauma Ilona Viduskalne, Ruta Care Summary Objectives. The aim of the present study was to investigate pulp survival following crown fracture with and without pulp exposure as well as with and without associated subluxation and in relation to stage of root development and type of enamel-dentine fracture. Materials and methods. This study consisted of 83 patients with 116 crown fractured incisors without pulp exposure and 35 patients with 44 complicated crown fractures. The effect of variables on the maintenance of tooth vitality were explored using the Linear Regression analysis , which assumes the effects of different factors on the pulp vitality such as (age, stage of the root development, contaminant subluxation, fracture depth, emergency treatment). Results. The general distribution was 59 (71%) boys and 24 (29%) girls with uncomplicated crown fractures aged 7-17 years, mean 10.7 years ±2.83SD and 24 (68.5%) boys and 11 (31%) girls with complicated crown fracture. From 78 uncomplicated crown fractures without subluxation PN (pulp necrosis) was evaluated in 4 (4.88%) cases but from 20 uncomplicated crown fractures with subluxation PN was 14 (56.52%) cases. Univariate analysis showed that stage of root development p<0.05, subluxation p<0.001, fracture depth p<0.001 were significantly related to the pulp survival. Conclusions. The primary factors related to pulp healing events after crown fracture appears to be compromised pulp circulation due to concomitant subluxation as well as the stage of root development and fracture depth. For incisors with complicated crown fractures there were two more factors related to pulpal healing-time interval from injury until initial treatment and appropriate emergency treatment. Key words: permanent teeth eruption, general factors, influence. Received: 20 10 2009 Accepted for publishing: 28 12 2010 Department of Conservative dentistry , Riga Stradins University, Riga, Latvia Ilona Viduskalne – D.D.S. Ruta Care* – D.D.S., prof. Address correspondence to: Dr. Ilona Viduskalne, Lašu 5-67, Jūrmala LV-2010, Latvia. E-mail address: ilona.viduskalne@apollo.lv