On (b)(6) 2015, a dentist reported that a patient who had a crown on tooth #2 made from 3m espe lava ultimate cad/cam restorative for cerec required extraction of the treated tooth.On (b)(6) 2015, this patient presented at the office with the lava ultimate crown, a post and core (tooth had undergone prior root canal treatment).The lava ultimate crown had been secured approximately 1-1/2 to 2 years prior with 3m espe relyx ultimate adhesive resin cement and 3m espe scotchbond universal adhesive.The dentist refused to pull patient records to provide additional detail, but did state that when the patient was seen 1 year prior to the (b)(6) 2015 events, there was no indication that the crown was loose.The tooth was extracted and an implant placed on (b)(6) 2015.
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