parodontium
Explanation:
PERIODONTIUM The tissues that surround and support the teeth are collectively called the periodontium. Their main functions are to support, protect, and provide nourishment to the teeth. Figure 4-8 illustrates the supporting tissues of the periodontium. The periodontium consists of cementum, alveolar process of the maxillae and mandible, periodontal ligament, and gingiva
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Note added at 6 days (2011-07-03 20:31:38 GMT) Post-grading
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Yes, my mind worked faster than my fingers. Periodontium it should have been.
Reference: http://www.tpub.com/content/medical/14274/css/14274_60.htm
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PRO pts in category: 12
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The translation workplace 
peer agreement (net): +5