>> perfectly healthy child.
bright, shining, radiant, happy,
beautiful boy.
his body, just organ failure.
>> reporter: because of a dental
procedure?
>> yeah.
because of a dental procedure.
>> reporter: california's dental
board revoked dr. doucet's
permit for general anesthesia.
calleb's family has settled a
lawsuit against them.
doucet said that calleb's death
was a tragedy.
but the family believes the
routine practice of dentists
doing anesthesia and dental work
at the same time is unsafe and
contributed to calleb's death.
>> it's ridiculous that this is
how it's done.
and it shouldn't be tolerated.
>> reporter: is it safe what
you're doing?
>> i believe it's safe.
>> reporter: past president of
association of oral and facial
surgeons.
some people we've spoken to
about this criticize the
practice say it's like texting
and driving.
you can't drive a car and text