¢rstavik ,D . Essential endodontology prevention and treatment of apical periodontitis / [Book :] D . ag ¢rstavik, Thomas R. Pitt Ford. - 1st.ed. - Oxford, OX ; Malden, Mass. : Blackwell Science, 1998. - vii, 410 p. : ill. ; 28 cm. Includes bibliographical references and index. All age. ISBN: 0632040890 LCCN: 98025953 Subjects--Topical Terms: Periodontitis--Prevention.Periodontitis--Treatment.Endodontics. LC Class. No.: RK450.P4 / E85 1998 Dewey Class. No.: 617.632