Millet C, Viennot S, Duprez J P
Department of Prosthodontics School of Dentistry, University Lyon I, Faculté d'Odontologie, Rue Guillaume Paradin, 69372 Lyon Cedex 08, France.
Eur Arch Paediatr Dent. 2010 Oct;11(5):256-60. doi: 10.1007/BF03262758.
Dentinogenesis imperfecta is one of the most common hereditary disorders of dentine formation. Opalescent teeth composed of irregularly formed and undemineralised dentine that obliterates pulp chambers and root canals characterize it. Complete-coverage crowns are usually the preferred restoration for patients with this condition.
A 9 year-old girl presented with dentinogenesis imperfecta, congenitally missing maxillary lateral incisors and maxillary right permanent second molar retention.
The treatment comprised an initial approach to allow the correct eruption of the retained second molar. The use of low-fusion metal ceramic restorations comprised a second stage to improve the aesthetic appearance and decrease the risk of overload on teeth with limited value.
FOLLOW-UP: The patient has been recalled regularly and at the last visit, 10 years after initial prosthetic treatment, no problems or signs of complications have occurred. The patient is now aged 25 years and is still satisfied with the prosthetic rehabilitation.
This case illustrates the need for appropriate and timely restorative treatment to prevent deterioration of the dentition. This case will also demonstrate that low-fusion metal ceramic restoration is a viable esthetic treatment option for today's patients.
牙本质发育不全是牙本质形成最常见的遗传性疾病之一。其特征为牙齿呈乳光色，由不规则形成且未脱矿的牙本质组成，牙髓腔和根管被其充填。对于患有这种疾病的患者，全冠修复通常是首选的修复方式。
一名9岁女孩患有牙本质发育不全，上颌侧切牙先天性缺失，上颌右侧恒第二磨牙滞留。
治疗首先采取措施使滞留的第二磨牙正确萌出。第二阶段采用低熔金属烤瓷修复体，以改善美观并降低对价值有限的牙齿造成过载的风险。
患者定期复诊，在首次修复治疗10年后的最后一次复诊时，未出现任何问题或并发症迹象。患者现25岁，仍对修复治疗效果满意。
该病例表明需要进行适当及时的修复治疗以防止牙列恶化。该病例还将证明，低熔金属烤瓷修复对于当今患者而言是一种可行的美学治疗选择。
