Dental Did You Know: Mandibular Block Failure Rates

On average, when giving an mandibular block (to freeze the lower teeth), the failure rate is approximately 20%. On teeth that are infected, this rises to 55%.

Source: Lecture from David Isen, May 26, 2010 (d.isen@rogers.ca) from a Powerpoint Slide referencing Claffey et al, J of Endo Aug, 2004.


Hans Skariah, B.Sc., DMD
Promenade Court Dental Health Group in Mississauga
2233 Hurontario St., Mississauga, ON, Canada
(1/2 km north of the QEW in the Dome Building)
(905) 273-7100