Fort Lauderdale authorities are checking the dental records of a body found Sunday afternoon to see if it is a South Florida woman who disappeared Thursday after seeking a restraining order against her husband.

Josephine Frenna, 51, vanished a day before she was scheduled to be in court for a hearing on the restraining order and a week after filing for divorce.

U.S. Coast Guard officials found the body of a woman clad in a blue bathing suit about 20 miles east of the Sebastian Inlet early Sunday afternoon, the Miami Herald reports.

Sgt. Frank Sousa of the Fort Lauderdale Police Department told FOXNews.com that they expected results of the dental records check to be completed on Tuesday.

Frenna, who recently moved from Canada, had told a Broward County judge that she and her son were "afraid for our life" because her estranged husband, Gerardo Di Marco, is "violent" and "dangerous," according to reports.

Frenna’s 14-year-old son became suspicious Thursday when he returned from school to find his mother’s car, purse and cell phone, but no trace of her. Police have searched nearby apartments, hospitals, jails and airlines with no luck.

Frenna’s family and friends have been interviewed as well. Di Marco was located Friday by Fort Lauderdale police and has been cooperative, police told the Herald.

Frenna’s restraining order request claimed her husband had broken through doors with an ax and changed the locks on their home, as well as threatened to throw her off the couple’s balcony.

Di Marco had indicated he planned to leave Florida and was seeking joint custody of the couple’s son. He tried to get a court order barring Frenna from selling their assets and was named the beneficiary of her life insurance policy.

Di Marco’s attorney, Marc Shelowitz, told the Miami Herald on Friday he was shocked to hear Frenna was missing.

Click here to read more on this story from the Miami Herald.