BACKGROUND Complicated crown-root fracture is considered a severe dental trauma and is unlikely to heal without treatment.Usually,dentists have to remove the loose coronal fragment of the fractured tooth and treat the...BACKGROUND Complicated crown-root fracture is considered a severe dental trauma and is unlikely to heal without treatment.Usually,dentists have to remove the loose coronal fragment of the fractured tooth and treat the remaining part with multidisciplinary approaches.However,we observed spontaneous healing of fracture in two pediatric cases with a history of complicated crown-root fractures over 4 years ago.CASE SUMMARY In case 1,a 12-year-old boy complained of pain at tooth 11 following an accidental fall 1 d ago.Clinical examination showed a crack line on the crown of tooth 11.Cone beam computed tomography(CBCT)images of tooth 11 showed signs of hard tissue deposition between the fractured fragments.The patient recalled that tooth 11 had struck the floor 1 year ago without seeking any other treatment.In case 2,a 10-year-old girl fell down 1 d ago and wanted to have her teeth examined.Clinical examination showed a fracture line on the crown of tooth 21.CBCT images of tooth 21 also showed signs of hard tissue deposition between the fractured fragments.She also had a history of dental trauma 1 year ago and her tooth 11 received dental treatment by another dentist.According to her periapical radiograph at that time,tooth 21 was fractured 1 year ago and the fracture was overlooked by her dentist.Both of these two cases showed spontaneous healing of complicated crown-root fractures.After over 4 years of follow-up,both fractured teeth showed no signs of abnormality.CONCLUSION These findings may provide new insights and perspectives on the management and treatment of crown-root fractures in children.展开更多
BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and te...BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in theliterature.CASE SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in which pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical level.After the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival overgrowth.Cone-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. It was speculated that the groove was related to thelocalized gingival overgrowth.CONCLUSION This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.展开更多
基金Supported by National Natural Science Foundation of China,No.81771095Shaanxi Provincial Key R&D Program,China,No.2021KWZ-26State Key Laboratory of Military Stomatology,No.2020ZA01。
文摘BACKGROUND Complicated crown-root fracture is considered a severe dental trauma and is unlikely to heal without treatment.Usually,dentists have to remove the loose coronal fragment of the fractured tooth and treat the remaining part with multidisciplinary approaches.However,we observed spontaneous healing of fracture in two pediatric cases with a history of complicated crown-root fractures over 4 years ago.CASE SUMMARY In case 1,a 12-year-old boy complained of pain at tooth 11 following an accidental fall 1 d ago.Clinical examination showed a crack line on the crown of tooth 11.Cone beam computed tomography(CBCT)images of tooth 11 showed signs of hard tissue deposition between the fractured fragments.The patient recalled that tooth 11 had struck the floor 1 year ago without seeking any other treatment.In case 2,a 10-year-old girl fell down 1 d ago and wanted to have her teeth examined.Clinical examination showed a fracture line on the crown of tooth 21.CBCT images of tooth 21 also showed signs of hard tissue deposition between the fractured fragments.She also had a history of dental trauma 1 year ago and her tooth 11 received dental treatment by another dentist.According to her periapical radiograph at that time,tooth 21 was fractured 1 year ago and the fracture was overlooked by her dentist.Both of these two cases showed spontaneous healing of complicated crown-root fractures.After over 4 years of follow-up,both fractured teeth showed no signs of abnormality.CONCLUSION These findings may provide new insights and perspectives on the management and treatment of crown-root fractures in children.
基金Supported by 2021 Disciplinary Construction Project in School of Dentistry,Anhui Medical University,No.2021kqxkFY05.
文摘BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in theliterature.CASE SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in which pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical level.After the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival overgrowth.Cone-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. It was speculated that the groove was related to thelocalized gingival overgrowth.CONCLUSION This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.
