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5AAE (American Association of Endodontists) (2013) Guide to Clinical Endodontics.

1ESE (European Society of Endodontology) (2006) Quality guidelines for endodontic treatment: consensus report of the European Society of Endodontology. Int Endod J 39: 921-930.

2Rosenberg PA, Schindler WG, Krell KV, Hicks ML, Davis SB (2009) Identify the Endodontic Treatment Modalities. J Endod 35: 1675-1694.

3SBU (Swedish Council on Health Technology Assessment) (2012) Methods of Diagnosis and Treatment in Endodontics. A Systematic Review. SBU Report.

4Evans GE, Bishop K, Renton T (2012) Guidelines for Surgical Endodontics. The Royal College of Surgeons of England. Br Dent J 212 : 497-498.

5AAE (American Association of Endodontists) (2013) Guide to Clinical Endodontics.

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6Cohen S, Schwartz S (1987) Endodontic Complications and the Law. J Endod 13: 191-197.

7Milgrom P, Fiset L, Whitney C, Conrad D, Cullen T, et al. (1994) Malpractice claims during 1988-1992: a national survey of dentists. J Am Dent Assoc 125: 462-469.

8Hapcook CP Sr (2006) Dental malpractice claims: percentages and procedures. J Am Dent Assoc 137: 1444-1445.

9Bjørndal L, Reit C (2008) Endodontic malpractice claims in Denmark 1995-2004. Int Endod J 41: 1059-1065.

10Givol N, Rosen E, Taicher S, Tsesis I (2010) Risk Management in Endodontics. J Endod 36: 982-984.

11Pinchi V, Pradella F, Gasparetto L, Norelli G-A (2013) Trends in endodontic claims in Italy. Int Dent J 63: 43-48.

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16Dugas NN, Lawrence HP, Teplitsky PE, Pharoah MJ, Friedman S (2003) Periapical health and treatment quality assessment of root-filled teeth in two Canadian populations. Int Endod J 36: 181-192.

17Jimenez-Pinzon A, Segura-Egea JJ, Poyato-Ferrera M, Velasco-Ortega E, Ríos-Santos JV (2004) Prevalence of apical periodontitis and frequency of root-filled teeth in an adult Spanish population. Int Endod J 37: 167-173.

18Salehrabi R, Rotstein I (2004) Endodontic treatment outcomes in a large patient population in the USA: an epidemiological study. J Endod 30: 846-850.

19Gulsahi K, Gulsahi A, Ungor M, Genc Y (2008) Frequency of root-filled teeth and prevalence of apical periodontitis in an adult Turkish population. Int Endod J 41: 78-85.

20Huumonen S, Vehkalahti MM, Nordblad A (2012) Radiographic assessment on prevalence and technical quality of endodontically treated teeth in 30-year olds and older Finns. Acta Odontol Scand 70: 234-40.

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30Morris J, Chenery V, Douglas G, Treasure E (2011) Service considerations - a report from the Adult Dental Health Survey 2009. The Health and Social Care Information Centre.

28 Brown E, Manski R (2004) Dental Services: Use, Expenses, and Sources of Payment, 1996-2000. Agency for Healthcare and Research Quality. MEPS Research Findings No. 20. AHRQ Pub. No. 04-0018.

29Suominen-Taipale AL, Nordblad A, Vehkalahti M, Aromaa A (eds.) (2008) Oral Health in the Finnish adult population. Health 2000 survey. Publications of the National Public Health Institute B 25/2008; Helsinki: Hakapaino.

30Morris J, Chenery V, Douglas G, Treasure E (2011) Service considerations - a report from the Adult Dental Health Survey 2009. The Health and Social Care Information Centre.

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32Harrison R, Walton M, Manias E, Smith-Merry J, Kelly P, et al. (2015) The missing evidence: a systematic review of patients' experiences of adverse events in health care. Int J Qual Health Care. 27: 424-442.