Vertical root fracture in endodontically versus nonendodontically treated teethA survey of 315 cases in Chinese patients

Chan, Chiu‐Po; Lin, Chang‐Yu; Tseng, Shih-Chang; Jeng, Jiiang‐Huei

doi:10.1016/s1079-2104(99)70252-0

Cited by 140 publications

(152 citation statements)

References 13 publications

Supporting

Mentioning

134

Contrasting

Unclassified

Order By: Relevance

“…In the present study, vertical root fracture was most common among the 50 -59 years age group in both men and women, which largely agrees with the results of Chan et al ( 26).…”

Section: Discussionsupporting

confidence: 93%

See 1 more Smart Citation

Comparison of Fracture Sites and Post Lengths in Longitudinal Root Fractures

Sugaya

Nakatsuka

Inoue

et al. 2015

Journal of Endodontics

View full text Add to dashboard Cite

show abstract

“…In the present study, vertical root fracture was most common among the 50 -59 years age group in both men and women, which largely agrees with the results of Chan et al ( 26).…”

Section: Discussionsupporting

confidence: 93%

“…Vertical root fracture occurred with the greatest frequency in the maxillary premolars, followed by the mandibular molars and mandibular premolars, which is in agreement with the results of Testori et al (27) and Chan et al (26). One reason may be that these teeth are subjected to a strong occlusal force.…”

Section: Discussionsupporting

confidence: 90%

Comparison of Fracture Sites and Post Lengths in Longitudinal Root Fractures

Sugaya

Nakatsuka

Inoue

et al. 2015

Journal of Endodontics

View full text Add to dashboard Cite

show abstract

“…, Testori et al 15 and Tamse et al 3 reported that premolars have more frequency of VRF in endodontically treated teeth; however, our results, like those of Chan et al 12 and Llena-Puy et al…”

supporting

confidence: 61%

“…Most of the VRF in endodontically treated teeth were recorded in patients 30 to 50 years of age as in some previous reports. 8,12,15,18 Based on this finding, we can speculate that after endodontic treatment, teeth become more prone to fracture in younger patients.…”

Section: Discussionmentioning

confidence: 79%

Prevalence of Vertical Root Fracture in Extracted Endodontically Treated Teeth: A Prospective Study

Olcay¹,

Ataoğlu²,

Bellí³

2017

Cumhuriyet Dental Journal

View full text Add to dashboard Cite

Objectives: Vertical root fracture (VRF) is one of the complications of endodontic treatment which results extraction of the related tooth. The purpose of this prospective study was to evaluate prevalence of VRF in extracted endodontically treated teeth. Materials and Methods: During a 1 year period 241 teeth were observed. All of the cases were from extracted teeth after endodontic treatment. Clinical signs, symptoms, the informations about patient and related tooth were recorded. Results: A total of 17 (7.02%) cases of VRF occurring among 241 cases were observed. The VRF occurred most frequently in the mesial roots of the mandibular first molars (23.5%) and they were the most frequently extracted teeth (35.2%). The VRF prevalence of maxillary first molars was 23.5%, maxillary first and second premolars with a same frequency (11.7%) were the following most fractured teeth. The fractures were predominantly buccolingual and were more frequent in female patients (58.8%). The mean patient age was 36 years and the mean time to VRF was 45 months. Most of the teeth which undergo VRF had a composite restoration (41.1%). 23.5% of the teeth had a post restoration and from among these posted teeth 75% were fully crowned. VRF was found similar frequency in mandibular teeth and in maxillary teeth (p>0.05). Conclusions: After average of 45 months from endodontic treatment, mandibular first molar teeth were found most frequently prone to extraction due to VRF. Further investigation is necessary to determine the possible causes and evidence of fracture development. Key Words: Endodontically treated teeth, vertical root fracture, tooth extraction, failure. ÖZ Amaç: Dikey kök kırığı (VRF), ilgili dişin çekimini gerektiren, endodontik tedavinin komplikasyonlarından biridir. Bu ileriye dönük çalışmanın amacı, çekim endikasyonu bulunan endodontik tedavi görmüş dişler arasında VRF görülme sıklığını değerlendirmektir. Gereç ve Yöntem: 1 yıllık bir süre boyunca 241 diş gözlendi. Tüm vakalar çekim endikasyonu bulunan endodontik tedavi görmüş dişler arasından seçildi. Hasta ve ilgili diş ile ilgili klinik belirtiler, işaretler ve bilgiler kaydedildi. Bulgular: 241 vaka arasında toplam 17 (%7,02) VRF vakası gözlendi. VRF, en sık alt çene birinci büyük azı dişlerin mesial köklerinde (% 23,5) meydana gelmiş ve bu dişlerin en sık çekilen dişler olduğu bulunmuştur (%35,2). Üst çene birinci büyük azı dişlerde VRF görülme sıklığı % 23,5; takiben, üst çene birinci ve ikinci küçük azı dişler aynı oranla (% 11,7), en sık kırılan dişler olmuştur. Kırıklar ağırlıklı olarak bukko-lingual idi ve kadın hastalarda daha sıktı (% 58,8). Ortalama hasta yaşı 36 idi ve VRF oluşana dek geçen ortalama sure 45 ay idi. VRF görülen dişlerin çoğunda kompozit onarım (% 41,1) vardı. Dişlerin % 23,5'inde post restorasyon vardı ve bu postlu dişlerin % 75'inde tam kron vardı.

show abstract

“…Indeed, they have a high frequency in Chinese people, who constitute a population with a dietary pattern of chewing hard foods, 4,5 and 40% of VRFs occur in non-endodontically treated teeth. 6 Clinical studies have found that spontaneous VRFs always occur in severely attrited first molars. 4 It is noteworthy that cracks initiate at the root apex and propagate coronally.…”

Section: Introductionmentioning

confidence: 99%

The effects of ageing on the biomechanical properties of root dentine and fracture

Zheng

Shao

et al. 2014

Journal of Dentistry

View full text Add to dashboard Cite

j o u r n a l o f d e n t i s t r y 4 2 ( 2 0 1 4 ) 3 0 5 -3 1 1 a r t i c l e i n f o Objectives: Knowledge of the mechanical behaviour of root dentine can facilitate better understanding of spontaneous vertical root fracture (VRF), an age-related disease initiated mainly at the root apex. We tested the hypothesis that the biomechanical properties of root dentine change with ageing.Methods: Sixteen human premolars were divided into ''old'' (17-30 years) and ''young'' (50-80 years) groups. The elastic modulus, nano-hardness, micro-hardness, elemental contents, tubular density/area of root dentine in cervical, middle and apical root regions were evaluated using atomic force microscopy-based nano-indentation, Knoop indentation, scanning electron microscopy and energy dispersive X-ray spectroscopy, respectively. Results:The apical dentine showed a lower nano-hardness, a lower elastic modulus, a lower calcium content, a lower calcium-to-phosphorus ratio and a smaller tubular density/area than the cervical dentine in both age groups, whereas spatial differences in micro-hardness were observed only in old roots. Compared with young dentine, old dentine showed a greater hardness, a higher elastic modulus, a greater mineral content and a smaller tubular size in the cervical portion, whereas the age-induced changes in tubular density were insignificant. Finite element analysis revealed that due to its higher elastic modulus, old apical dentine has a higher stress level than young dentine. Conclusions:The intrinsic material properties of root dentine have spatial variations, and they are altered by ageing. The higher stress level in old apical dentine may be one reason, if not the most important one, why spontaneous VRFs are more likely to occur in the elderly population.

show abstract

Vertical root fracture in endodontically versus nonendodontically treated teethA survey of 315 cases in Chinese patients

Cited by 140 publications

References 13 publications

Comparison of Fracture Sites and Post Lengths in Longitudinal Root Fractures

Comparison of Fracture Sites and Post Lengths in Longitudinal Root Fractures

Prevalence of Vertical Root Fracture in Extracted Endodontically Treated Teeth: A Prospective Study

The effects of ageing on the biomechanical properties of root dentine and fracture

Contact Info

Product

Resources

About