Syphilis can cause open sores. That definitely increases the chances of infection.
The use of narcotics can increase your risk of HIV if their abuse affects your judgment about sexual safety. The safe, prescribed use of narcotics doesn't increase the risk of HIV.
Routine infection control techniques prevent the transmission of HIV in the dental clinic. If your dentist is using standard procedures, there is no risk of HIV transmission.
No.
Yes; having a STD absolutely does increase your chances of contracting HIV.
The practice known as universal precautions makes the assumption that those bodily fluids pose a risk for transmission of HIV.
yes
Yes it does; you are more apt to catch HIV if infected with a STI.Since the STDs reduce you immune system response, your immune system is less likely to protect you from the HIV infection.Yes having STDs such as herpes and chlamydia does increase the risk of getting and spreading HIV.
Being promiscuous (having a lot of sexual partners) does not create HIV - you have to be infected by one of your partners (or by some other means on transmission). The fact that you are promiscuous (have a lot of sexual partners) does not significantly increase your risk of contracting HIV. The risk would arise if you were not having safer sex with them.
Yes it does.
Yes it is possible, but HIV transmission from an infected partner through oral sex is much smaller than the risk of HIV transmission from anal or vaginal sex.
STDs do not reduce the risk of getting HIV. In fact, STDs increase the risk of getting HIV. Any STD elicits an immune response. Its almost like ringing the dinner bell for HIV. Most infections pull CD4 immune cells (cells that HIV infects) to the site of infection (usually). This increases the risk of infection.
No. This would not be considered a transmission risk.