It would be advisable to have your dental records reviewed by a second dentist and also to be examined by that second dentist.  If that dentist writes a report supporting a malpractice claim against the first dentist, then proceed with the malpractice claimMalpractice is negligence.  Negligence is the failure to exercise due care (that degree of care that a reasonable dental practitioner in the community would have exercised under the same or similar circumstances to prevent foreseeable harm).Prior to filing a lawsuit for negligence against the first dentist, it may be possible to settle the case with his malpractice insurance carrier.  Your claim filed with the malpractice insurance carrier should include your dental bills, dental reports (especially the report from the second dentist), and documentation of any wage loss.  Compensation for the dental bills is straight reimbursement.  The dental reports will document the nature and extent of your injury and will be used to determine compensation for pain and suffering, which is an amount in addition to the dental bills.  Compensation for wage loss is straight reimbursement.  If the case is settled with the first dentist's malpractice insurance carrier, NO lawsuit is filed.  If you are dissatisfied with settlement offers from the malpractice insurance carrier, reject rhe settlement offers and file a lawsuit for negligence against the first dentist.  If the case is NOT settled with the malpractice insurance carrier, your lawsuit for negligence against the first dentist must be filed prior to the expiration of the applicable statute of limitations or you will lose your rights forever in the matter.