Dental Did You Know: The Incidence of Paresthesia after a Dental Injection

The incidence of paresthesia (loss or altered sensation) after the injection of an anesthetic is about 1 out of 785,000 (very low).

Source: Garisto G et al, Occurrence of Paresthesia After Dental Local Anesthetic Administration in the United States, PEAK, Royal College of Dental Surgeons of Ontario, May/June 2011.

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

Dental Did You Know: Dental Injection Pace

Giving a slower injection (60 sec) when giving a mandibular block increases the number of teeth that can be frozen vs. giving a fast injection (15 sec). 

(Slow injections are more accurate) 

Source: Lecture from David Isen, May 26, 2010 (d.isen@rogers.ca) from a Powerpoint Slide referencing Kanaa et al, J of Endo 32:919-923 2006.

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

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

Dental Did You Know: Increases in Blood Pressure with Dental Anesthetics

Hi everyone,

Most dental anesthetics that are typically used contain epinephrine (adrenaline). Studies have shown an increase of 10-20 mmHg (to between 130-150 mmHg) in the systolic blood pressure vs non-epinephrine containing anesthetics.

Source: Wahl M and Brown R, Dentistry's Wonder Drugs: Local Anesthetics and Vasoconstrictors, Dental Style (Canadian Edition-Academy of General Dentistry), May 2010 pg 48-66.

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

Course Update: Anaesthesia and Conscious Sedation

Went to a nice course given by Dr. K Khaled from Children's Sleep Dentistry on anaesthesia techniques and conscious sedation. I wanted to thank him and his staff for the course (and of course the nice food spread!).


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