At United Dental Clinic, we consider toothaches dental emergencies, especially if the pain is increasing or is accompanied by swelling. Toothaches let you know something is wrong and should be addressed by your Warriewood dentist. A tooth root infection can be excruciating, and without intervention from an emergency dentist, you risk increased pain, losing the tooth, and infection spread. Tooth root infections may be the most common cause of toothache.