[LASER applications in endodontics].
Since the development of the ruby laser by Maiman in 1960 and the application of the laser for endodontics by Weichman in 1971, a variety of lasers with a wide range of characteristics are now being used in endodontic therapy. In the past two decades much experience and knowledge has been gained The first purpose of the present paper is to provide an understanding of the essential physical science behind laser technology and information on the effects of laser beams on tissue (tissue interaction). A second purpose is to summarize laser applications in endodontics, including their use in pulp diagnosis, dentinal hypersensitivity, pulp capping and pulpotomy, modification of the root canal walls, sterilization of the root canal system, cleaning--shaping--obturation of the root canal, and endodonticthreat and told to avoid large crowds on Thursday night, as a foreign intelligence tip-off suggested Islamic State was planning attacks with five to seven suicide bombers.

Three weeks ago, Finnish police arrested Iraqi twin brothers who had entered the country posing as asylum seekers in connection with an Islamic State massacre of unarmed prisoners in June 2014, The New York Times reported.

According to the Finnish National Bureau of Investigation, the 23-year-olds were suspected of killing 11 people during a massacre of as many as 1,700 unarmed Iraqi soldiers in June 2014 at Camp Speicher near Tikrit, northwest of Baghdad.

The men were identified from an Islamic State propaganda video of the killings.

FEARS IS PASSPORTS USED IN GERMANY

It comes as German security authorities confirm migrants carrying forged passports from the