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①Class I: lesions occur in pits and fissures on the facial, ......

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outline the mechanisms of plaque formation.The attachment , growth , removal and reattachment of bacteria to the tooth surface is a continuous and dynamic process. However, several distinct processes can be recognized.Absorption of salivary proteins and glycoproteins, together with some bacterial molecules, to the tooth surface to form a conditioning film(the acquired pellicle).Long-range(>E0nm), non-specific interaction of microbial cell surfaces with the acquired pellicle via van der Waals attractive forces.Shorter-range(A0-B0nm) interactions, in with the interplay of van der Waals attraction forces and electrostatic repulsion produces a weak area of attraction that can result in reversible to the surface.Irreversible adhesion can occur if specific inter-molecular interactions take place between adhesions on the cell surface and receptors in the acquired pellicle.Secondary or late-colonisers attach to primary colonizers (coaggregation), also by specific inter-molecular interactions.Cell division of the attached cells to produce confluent growth, and a biofilm.
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Please state the prognosis of replantation in a simple way.①Surface resorption ②Inflammation resorption ③Replacemen resorption
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