Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: Mesiodens — Diagnosis and Management of a Common Supernumerary Tooth FULL TEXT • Kathleen A. Russell, BSc, DDS, MSc • 
  
 • Magdalena A. Folwarczna, BSc, DDS • 
  
 A b s t r a c t 
  
  
  
 Treatment options may include surgical extraction of the mesiodens. If the permanent teeth do not erupt in a reasonable period after the extraction, surgical exposure and orthodontic treatment may be required to ensure eruption and proper alignment of the teeth. In some instances, fixed orthodontic therapy is also required to create sufficient arch space before eruption and alignment of the incisor(s). Early diagnosis allows the most appropriate treatment, often reducing the extent of surgery, orthodontic treatment and possible complications. This paper outlines the causes and modes of presentation of mesiodentes, and presents guidelines for diagnosis and management of nonsyndromic mesiodentes. 
  
 MeSH Key Words: incisor abnormalities; malocclusion therapy; tooth, supernumerary/diagnosis 
  
 Reply to this article | View replies [1] ||||| Random tooth growing inside man's NOSE is found to be the reason for his mysterious nosebleeds 
  
  
  
 Doctors in Saudi Arabia found a white bony mass growing in a man's nose 
  
 Dentists say it was an extra tooth growing in his nasal cavity 
  
 Growth was causing man, 22, to have frequent nosebleeds and tonsillitis 
  
  
  
 Rogue tooth was extracted and the man has made a full recovery 
  
  
  
 When a man from Saudi Arabia kept having nosebleeds, few people could have predicted the cause. 
  
  
  
 The 22-year-old, who suffered nose bleed at least one a month over three years, had a tooth growing in his nose, a report reveals. 
  
 Doctors found a white bony mass measuring half an inch (1cm) long growing in his nasal cavity. 
  
 Doctors found a white bony mass measuring half an inch (1cm) long growing in one man's nasal cavity (pictured) which upon closer inspection, dentists proclaimed an extra tooth 
  
 THE CAUSE OF EXTRA TEETH A dentist explained that extra teeth are not that unusual, but they rarely grow inside the nose. 
  
 Up to 3.9 per cent of people have more teeth that usual and they can erupt in unexpected places, according to previous studies. 
  
 Around a third of mesiodens (a common type of extra tooth found near the incisors) develop upside down and can travel towards the nose. 
  
 No-one is exactly sure why some people have this problem, but the report says: ‘causes of intranasal teeth include trauma, infection, anatomical malformations, and genetic factors.’ 
  
 Extra teeth can appear in the palette as a normal looking extra tooth, or can grow into the nasal cavity in rare cases. 
  
 Symptoms of such a problem include a blocked nose, headaches, nose bleeds, foul-smelling mucus and even external deformities of the nose. 
  
 Upon seeking advice from dentists, it was confirmed the mass was in fact an extra tooth. 
  
 It was this that was responsible for the bleeding, they added. 
  
  
  
 The nosebleeds usually occurred after ‘minor nasal trauma’ - or rubbing of the nose - and the patient also frequently had tonsillitis. 
  
  
  
 According to the study,’ an intranasal supernumerary tooth’ was causing friction in an area of the nasal septum, resulting in bleeding. 
  
  
  
 The discovery of the tooth was particularly surprising because the man had a complete and well-aligned set of normal teeth in his mouth, Live Science reported. 
  
  
  
 To solve the problem, doctors from the King Fahd Military Medical Complex, in Dhahran, put the man under general anaesthetic before pulling out the rogue tooth. 
  
 Three months later, the patient’s nose had healed and his nosebleeds had ceased, according to the report published in the American Journal of Case Reports. 
  
  
  
 Commenting on the case, dentist Dr John Hellstein, who is a professor of oral pathology at the University of Iowa, told LiveScience that while extra teeth are not that unusual, they rarely grow inside the nose. 
  
  
  
 ‘It's an unusual case of an extra tooth - certainly, the most impressive intranasal photo I think I've ever seen of one. I've never seen the tooth actually in there.’ 
  
  
  
 The discovery of the tooth was particularly surprising because the man had a complete and well-aligned set of normal teeth in his mouth. The extra tooth is shown in this CT scan, marked with a red arrow 
  
 To stop the man's frequent nose bleeds, doctors put the man under general anaesthetic before pulling out the rogue tooth (pictured) 
  
 The dentist also remarked that it is surprising that the tooth went undetected for so long. 
  
 It is thought that the man may have had a mesioden - a common type of extra tooth found near the incisors. 
  
  
  
 Dr Hellstein explained that around a third of them develop upside down and can travel towards the nose. 
  
 Previous studies have found that up to 3.9 per cent of people have more teeth that usual and they can erupt in unexpected places. 
  
  
  
 No-one is exactly sure why some people have this problem, but the report says: ‘causes of intranasal teeth include trauma, infection, anatomical malformations, and genetic factors.’ 
  
  
  
 Extra teeth can appear in the palette as a normal looking extra tooth, or can grow into the nasal cavity in rare cases. 
  
  
  
 Symptoms of such a problem include a blocked nose, headaches, nose bleeds, foul-smelling mucus and even external deformities of the nose. 
  
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Output:
Doctors had strange news for a 22-year-old Saudi man who came in complaining of a nosebleed or two every month: He had a half-inch mass of bone in his nose, LiveScience reports. After consulting with dentists, the doctors decided he had a tooth in his nasal cavity and extracted it under general anesthesia. No muss, no fuss: A published report found that the patient recovered and the nosebleeds were gone after three months. "It's an unusual case of an extra tooth—certainly, the most impressive intranasal photo I think I've ever seen of one," says John Hellstein, a dentist. Studies show that extra teeth aren't so uncommon—0.15% to 3.9% of people have them—but Hellstein says it's unusual to see one growing through the nasal floor. The man probably had a mesiodens, a typical extra tooth that grows around the incisors, says Hellstein. It's not clear what causes extra teeth, but the report points to causes like trauma, infection, and genetic factors, the Daily Mail reports. Rare as it is, an extra tooth in the nose can lead to symptoms like nasal deformities, smelly mucus, nosebleeds, and headaches. But don't expect to find one: "I've never seen the tooth actually in there," Hellstein says. (Read about a teenager who had 232 extra teeth removed from his head.)