28.—(1) Where the Council is satisfied—

(a) that a person, who is not otherwise entitled to registration, is or intends to be in the State temporarily for the purpose of employment in the practice of dentistry in an institution or clinic approved of by the Council for the purposes of this section, and

(b) that such person holds a degree, diploma or other qualification which, in the opinion of the Council, affords sufficient guarantee that he possesses the requisite knowledge and skill for the efficient practice of dentistry and has passed an examination appropriate for obtaining such degree, diploma, or other qualification, as the case may be,

the Council may, subject to subsection (2) of this section, upon such person making application in the form and manner determined by the Council and on payment of the appropriate fee, temporarily register such person in the register for such period as the Council may determine.

(2) The Council may extend a period determined under subsection (1) of this section for such further period or periods as the Council may determine, provided that the aggregate of such periods shall not exceed five years.