Cracked Tooth Syndrome (CTS) was first described by Cameron in 1964 as “an incomplete fracture of a vital posterior tooth involving dentin and sometimes extending to 'to the pulp'. In the late 1970s, many authors used different terms to describe the same pathology, but Maxwell and Braly (1977) advocated the use of the generic term "incomplete dental fracture", first described by Ritchey and al. in 1957. Some recent works have also proposed a revised definition as "a fracture plane of unknown depth and direction passing through the tooth structure and which, if not already involved, may progress to communicate with the pulp and/or or the periodontal ligament. (Ellis, 2001) While complete tooth fracture occurs regardless of age, "cracked teeth" or incomplete tooth fractures seem to primarily affect middle-aged patients, between 30 and 60 years old. (Ellis et al, 1999) “Cracked teeth” are the third most common cause of tooth loss in industrialized countries. (Geurtsen et al, 2003) It is also a common occurrence in dental practice, with an estimated average of 5 in 100 adults affected each year. (Bader et al, 1995) In a more recent study by Krell et al (2007), an incidence rate of 9.7% among 8,175 patients referred to a private endodontic practice over a six-year period was found. recorded. Although the figures reveal a doubling of CTS cases, there are few studies available to validate these findings. Increased awareness of “cracked teeth” and higher numbers of patients retaining their natural teeth into old age are possible explanations for the increased incidence of “cracked teeth” observed in dental practices. Older adults may be more susceptible to CTS due to post-eruptive changes in enamel...... middle of paper ...... treatment of sore and cracked teeth: evaluation at six months. Operative Dentistry 28:327-333.23. Opdam NJ, Roeters JJ, Loomans RA, Bronkhorst E (2008). Seven-year clinical evaluation of painful and cracked teeth restored with direct composite restoration. Journal of Endodontics 34:808-811.24. Homewood CI (1998). Cracked tooth syndrome – incidence, clinical findings and treatment. Australian Dental Journal 43:217-222.25. Davis R, Overton J (2000). Effectiveness of bonded and bonded amalgams in the treatment of teeth with incomplete fractures. Journal of the American Dental Association 131:496-498.26. Van Dijken JWV (2000). Direct resin composite inlays/onlays: 11-year follow-up. Journal of Dentistry (28): 299-300.27. Tan I, Chen NN, Poon CY, Wong HB (2006). Survival of root-filled cracked teeth in a tertiary setting. International Journal of Endodontics (39): 886-889.