Many: There are several types of oral bacteria. An oral dna test can specifically show what bacteria are present in one's mouth. Some strains of bacteria can cause discoloration on the teeth, others affect the soft tissue and some can cause periodontal decline, among other problems.
Answered 3/2/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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