JCDA • www.cda-adc.ca/jcda • September 2009, Vol. 75, No. 7 • 509 Clinical SHOWCASE C ongenital absence of a maxillary lateral incisor occurs in many pa- tients, and the treatment of young adults with this problem is a challenge for both prosthodontists and orthodontists. Common treatment alternatives are dis- talization of the canine tooth or fabrica- tion of a conventional 3-unit fixed partial denture (FPD), a single-tooth, implant- supported crown restoration or a resin- bonded fixed partial denture (RBFPD). 1-4 is case report describes the indica- tions for an RBFPD, preparation of the abutment tooth and the clinical proce- dures for its fabrication. e technique described here represents a conservative, esthetically pleasing and rapid solution to the problem of a congenitally missing maxillary lateral incisor when implant placement and/or guided bone regenera- tion techniques are not feasible because of financial, social or time restrictions. Replacement of Congenitally Missing Lateral Incisor Using a Metal-Free, Resin-Bonded Fixed Partial Denture: Case Report Umut Cakan, DDS, PhD; Burak Demiralp, DDS, PhD; Muge Aksu, DDS, PhD; Tulin Taner, DDS, PhD “Clinical Showcase” is a series of pictorial essays that focus on the technical art of clinical dentistry. e section features step-by-step case demonstrations of clinical problems encountered in dental practice. If you would like to contribute to this section, contact editor- in-chief Dr. John O’Keefe at jokeefe@cda-adc.ca. Figure 1: Ectopic eruption of the maxillary left permanent canine and non-exfoliated deciduous canine in a 22-year-old woman with congenital absence of the maxillary left lateral incisor. Figure 2: Crowding of the teeth was min- imal in the upper and lower arches. Case Report A 22-year-old woman with congenital absence of the maxillary leſt lateral incisor was referred to our clinic. A clinical ex- amination revealed that the maxillary leſt permanent canine had undergone ectopic eruption and the deciduous canine had not exfoliated (Fig. 1). e periodontium of the intact abutment teeth was healthy, and the patient had no prior history of orthodontic treatment. e maxillary first molars were in Class I relationship on both sides. Crowding of the teeth was minimal in both the upper and lower arches (Fig. 2), so treatment without extraction of any permanent teeth was planned. To estab- lish adequate guided occlusion for the canine teeth and to achieve a more sym- metric and esthetic anterior appearance, extraction of the remaining deciduous canine, distalization of the leſt perma- nent canine into its proper position and