Laser Assisted Crown Lengthening
Ernesto A. Lee, DMD
Maintaining Interimplant Crestal Bone Height Via a Combined Platform-Switched, Laser-Lok Implant/Abutment System: A Proof-of-Principle Canine Study
Interimplant papillae are critical for achieving esthetic implant-supported restorations in the maxillary esthetic zone. Stable papillary anatomy, however, depends upon a stable volume underlying crestal bone for support. Multiple studies have documented a critical interimplant distance of 3mm under which crestal bone resorption occurs. This preclinical proof-of-principle canine study examines a novel implant-abutment system design, combining platform switching with precisely configured laser-ablated abutment and implant microgrooves to maintain interimplant crestal bone at interimplant distances of 2 and 4 mm. Results of this initial preclinical study suggest that it is possible through precise implant/abutment design modifications to place adjacent implants at distance of 2 to 4 mm without inducing subpapillary crestal bone loss.
Oral Soft Tissue Laser Ablative and Coagulative Efficiencies Spectra
The key to the success of soft tissue
lasers is their ability to cut and coagulate the
soft tissue at the same time. Present work is
aimed to derive the wavelength-dependent
differences in photo-thermal ablation and
coagulation efficiencies for oral soft tissue
pulsed dental Near-IR Diode, Mid-IR Erbium
and IR CO2 lasers. Even though the soft tissue photothermal
ablation has been extensively
studied, there remains a discrepancy
between (a) the widely proliferated notion
about efficient Near-IR 800-1,100 nm laser
ablation of the oral soft tissue, and (b)
studies reporting the inefficient soft tissue
Near-IR absorption/ablation. Indeed, the notions about “the key to
the usefulness of the Nd:YAG is that this
wavelength is highly absorbed in oral soft
tissue”, and “all currently available dental
laser instruments and their emission wavelengths
have indications for use for incising,
excising... oral soft tissue surgery”,
contradict an observation illustrated here...
Use of the Natural Tooth for Soft Tissue Development - A Case Series
esults from this study showed that all patients achieved a normal or Class 1 papilla appearance similar to the original appearance of the natural tooth.
The “VISTA” Vestibular Incision Subperiosteal Tunnel Access Technique for Treatment of Multiple Anterior Recession Defects
In this clinical video, the “VISTA” Vestibular Incision Subperiosteal Tunnel Access Technique is displayed in the treatment of multiple anterior recession defects on previously restored teeth. Debridement, root conditioning, incisions, ACDM placement, instrumentation and suturing are highlighted as well as two week postop results.
Tissue Deficiencies in the Posterior Maxilla
A surgcal slideshow with Dr. Maurice Salama.
Crown Lengthening in Comprehensive Esthetic Therapy: The Complete Surgical Video A to Z
In this complete surgical video, Dr. David Wong performs an esthetic crown lengthening procedure to address a "gummy smile" as part of comprehensive therapy and smile enhancement. Dr. Wong will outline the indications for crown lengthening surgery as opposed to orthognathic correction. The surgical video will demonstrate the complete crown lengthening surgery, including incision design, flap management and instrumentation. In addition, suturing and post-operative care will also be outlined in detail.
Modern Crown Lengthening: Classification and Clinical Application
Crown lengthening procedures are indicated to provide adequate tooth structure in case of subgingival tooth fracture or caries, uneven gingival level, un-esthetic short crowns due to the tooth wear, inadequate axial height, altered passive eruption ,forced eruption of a single or multiple teeth and finally in case of gingival smile.
The treatment modality for esthetic crown lengthening procedure should be based on detail diagnosis in each case because of the multifactorial etiology and because of the type of therapy selected by the clinician, will have a direct implication for the esthetic result.
The Evolving Role of Soft Tissue Enhancement in Esthetic Reconstructive Dentistry
Soft tissue grafting techniques, new regenerative materials and bioactivators will be highlighted. The expanding role of allograft materials (Perioderm), platelet rich in growth factors (PRGF, PRF), and when to utilize them will be suggested. The ability of these combined protocols to alter the soft tissue profile around natural teeth, implants, and dentulous ridges, will be reviewed as to its critical role in "Complete Esthetics".
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