When a tooth is extracted the ridge of bone that held the tooth in place begins to heal and
over time new bone grows to fill the empty space left by the missing tooth. Sometimes this
process works very well and new bone grows to completely fill the socket, at other times new
bone fails to fill in the space completely and patients are left with uneven bone-fill.
Grafted extraction sockets may fill with bone faster and more evenly than those without
grafts, allowing the dentist to have greater control over the healing process and to repair
the area with dental implants in a shorter period of time.
This study will help determine if grafting an extraction socket, with or without enriching
the graft material, is an added benefit when compared to allowing the socket to heal
The study will also assess how well two different dental implant designs used to restore the
area will function over time.
Tooth extraction is often associated with resorption of the alveolar ridge height and width
and with compromised soft tissue contours. A variety of methods have been proposed to
overcome varied patterns of post-extraction healing.
An increasingly common practice combines skilled surgical technique with post-extraction
site grafting utilizing both natural and synthetic bone-graft materials. These procedures
are thought to retard resorption of the socket volume while lending some control over
bone-fill - thereby preserving the integrity of the alveolar ridge for future reconstruction
with dental implants.
Limited evidence-based data exist to support a variety of bone-graft materials including
grafts enriched with autologous platelet-rich plasma(PRP)and grafts enriched with
recombinant human platelet-derived growth factors(PDGF). Despite emerging clinical
acceptance the most efficacious intervention remains undetermined.
In an effort to establish clinical evidence, this study will assess the efficacy of ridge
preservation using three different bone grafting applications in post-extraction sockets
compared to extraction alone.
The study will also asses longitudinal success of restoring the study sites with dental
implants. Two innovative dental implant designs will be used in the study; an implant with a
resorbable blast textured(RBT)surface and an implant with a laser thread-textured
- Needed extraction of Maxillary and/or Mandibular Incisors and/or Pre-molar teeth
- Inability to provide informed consent in English
- Pregnant women