avoided during the first trimester of pregnancy, so
as not to harm the fetus during the stage of organogenesis.
However, there is not enough evidence to
forbid dental treatment even during the first
trimester of pregnancy.
The ideal period for a complete dental treatment
of a pregnant woman is the beginning of the
second trimester (14-20 weeks of pregnancy) [23].
At this stage, there is no risk of teratogenesis, nausea
and vomiting have subsided, and the uterus is
not yet large enough to cause discomfort.
It is essential to treat all dental problems during
the second trimester, not only because the
woman should have a healthy mouth, but also
because during labour she might need to be intubated,
in which case teeth with a bad prognosis (e.g.,
tooth mobility due to periodontal disease) may be
damaged or lost [2].