Premium
Healing responses following transverse root fracture: a historical review and case reports showing healing with (a) calcified tissue and (b) dense fibrous connective tissue
Author(s) -
Heithersay AO Geoffrey S.,
Kahler Bill
Publication year - 2013
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/edt.12029
Subject(s) - periodontal fiber , bone healing , connective tissue , histology , medicine , anatomy , dentistry , pathology
Background The understanding and management of transverse intra‐alveolar root fractures has evolved to its current high level of sophistication and clinical success from foundations laid down by histological studies as early as the mid‐nineteenth century. Significance The aim of the review was to highlight those earlier histological reports and studies that have contributed to the current understanding of the biological processes involved in the healing of transverse root fractures. Healing of a transverse root fracture by calcified tissue was demonstrated histologically by H owe in 1926, while B oulger in 1928 showed the two other patterns of root fracture healing, namely the interposition of fibrous connective tissue and the interposition of bone and periodontal ligament around both fractured segments. Other major histological reports around that time came from members of the so‐called ‘The V ienna group of I llinois’, who had a significant influence in the development of oral biology worldwide. Other important reports and an experimental study emanated from G ermany and S witzerland in the late 30s and early 40s, followed in the 1950s and early 1960s by histological material principally from S weden, D enmark, F rance, the USA and B ritain. Jens A ndreasen and E rik H jörting‐ H ansen's landmark paper in 1967 included new histological reports and a classification of healing responses following transverse root fractures. The expansion of knowledge related to root fractures since that time has been exponential, with major contributions from S candinavia and several other countries. Case reports Accompanying the historical review are two case reports with histology of root fracture healing by (a) calcified tissue and (b) dense fibrous connective tissue. The role of the pulp and the periodontal ligament in the repair process is described and the clinical significance discussed with particular emphasis to diagnosis and orthodontic management.