Abrams H, Kopeczk R, Kaplan A. Incidence of anterior ridge deformities in partially edentulous patients. J Prosthet Dent. 1987; 57(2):191-194.
Ashman A, Froum S, Rosenlicht J. Replacement therapy. N Y State Dent J. 1994; 12(10):12-15.
Ashman A, Bruins P. Prevention of alveolar bone loss postextraction with HTR grafting material. Oral Surg Oral Med Oral Pathol. 1985; 60:146-153.
Cranin AN, et al. The use of a particulate, microporous, calcified copolymer as a ridge maintenance device in dogs. J Vet Dent. 1995; 12(2):53-58.
Boyne PJ. Use of HTR in tooth extraction sockets to maintain alveolar ridge height and to increase concentration of alveolar bone matrix. Gen Dent. 1995; 9:470-473.
Ashman A. Ridge preservation: the future practice of dentistry. Dent Econ. 1995; 8:80-83.
Salman L, Kinney L. Clinical response of hard-tissue replacement (HTR) polymer as an implant material in oral surgery patients. J Oral Implantol. 1992; 18(1):24-28.
Hawkins C, Sterrett J, Murphy H, et al. Ridge contour related to esthetics and function. J Prosthet Dent. 1991; 66(2):165-168.
Eppley BL, Sadove AM. Aesthetic facial applications of HTR polymer grafts. Experimental and clinical results. J Esthet Dent. 1995; 2(2):111-118.
Ashman A, LoPinto J, Rosenlicht J. Ridge augmentation for immediate postextraction implants: eight-year retrospective study. Pract Periodontics Aesthet Dent. 1995; 7(2):85-95.
Ashman A, Bruins P. HTR (hard tissue replacement) for edentulous ridge augmentation. N Y J Dent. 1983; 53(8):387-392.
Hoen M, Striftmafter E, La Bounty G, et al. Preserving the maxillary anterior ridge contour using hydroxylapatite. J Am Dent Assoc. 1989; 118:739-741.
Sottosanti J. Aesthetic extractions with calcium sulfate and the principles of the guided tissue regeneration. Pract Periodontics Aesthet Dent. 1993; 5(5):61-69.
Baker RD, Terry BC, et al: Long-term results of alveolar ridge augmentation. J Oral Surg. 1979; 37:486-489.
Piecuch JF. Augmentation of the atrophic edentulous ridge with porous replaniform hydroxyapatite (Interpore 200). Dent Clin North Am. 1986; 30:291-293.
Kelly JF, Friedlander GE. Preprosthetic bone graft augmentation with allogenic bone. J Oral Surg. 1977; 35:268-270.
Kent JN, et al. Correction of alveolar ridge deficiencies with nonresorbable hydroxyapatite. J Am Dent Assoc. 1982; 105:993-995.
Greenstein G, Jaffin RA, Hilsen KL, et al. Repair of anterior gingival deformity with durapatite: report of case. J Periodontol. 1985; 56:200-203.
Smukler H, Chaibi MS. Ridge augmentation in preparation for conventional and implant-supported restorations. Compend Contin Educ Dent. 1994; (suppl 18):S706-S710.
Hardwick, et al. Devices for dentoalveolar regeneration: an up-to-date literature review. J Periodontol. 1995; 66(6):495-505.
Langer L. Enhancing cosmetics through regenerative periodontal procedures. Compend Contin Educ Dent. 1994; (suppl 18):S699-S701.
Kamen P. Attachment of oral fibroblasts to HTR polymer. Compend Contin Educ Dent. 1988; 9(suppl 10):S350-S352.
Murray VK. Clinical applications of HTR polymer in periodontal surgery. Compend Contin Educ Dent. 1988; (suppl 10):S342-S347.
Murray VK. Polymer implant in a periodontal defect: reentry at 3 years. Compend Contin Educ Dent. 1991; 13(11):844-848.
Christensen G. Ridge preservation: now why not? J Am Dent Assoc. 1996; 127:669-670.