74 research outputs found
Immediate Loading of Dental Implant After Sinus Floor Elevation With Osteotome Technique: A Clinical Report and Preliminary Radiographic Results
Abstract
Edentulous ridges in the posterior maxilla are often compromised by reduced bone volume. This anatomic condition often limits dental implant placement of 10 mm in length without prior or simultaneous sinus augmentation. The osteotome technique is an alternative and conservative technique for sinus floor augmentation and immediate implant placement in the posterior region of the maxillary jaw. According to the relevant literature, the osteotome technique appears to be a predictable and safe method for augmenting bone at the sinus floor and to improve bone density and quality of the implant site sufficiently so that immediate loading is possible. A 46-year-old male patient was referred to the authors to replace the single upper premolar with an implant-supported crown restoration without interfering with the integrity and topography of the adjacent gingival tissues. Only one clinical study analyzed minimally invasive implant and sinus lift surgery with immediate loading. In that case report, the osteotomy was widened to its final diameter using a series of incrementally larger twist drills. In our clinical case, a series of incrementally larger diameter osteotomes improved bone density. This simplified treatment modality can make single tooth implant rehabilitation of the atrophic premolar maxilla region more accessible, and immediate loading is facilitated by improved bone density
At-home Cosmeceutical Application and Outpatient Treatments: A 3D Stepwise Facial Rejuvenation Approach
BACKGROUND: Aging affects the 3-dimensional structure of all the facial tissues: Bones, muscles, ligaments, adipose tissue, and skin.
AIM: To customize minimally invasive treatments for facial rejuvenation, we present a standardized holistic approach characterized by at-home treatments in associations with outpatient procedures.
METHODS: Forty-four patients underwent 3-dimensional stepwise facial rejuvenation and were evaluated prospectively. Each patient received a customized treatment plan based on a clinical examination and consultation. Treatment outcomes were evaluated from patient photographs with and skin analysis was performed with an A-One Smart automated skin analysis system.
RESULTS: The mean age of the patients was 41.7 years and the approximate mean duration of treatment was 160 days. Patients applied cosmeceuticals such as retinoic acid. Outpatient procedures included the delivery of botulinum toxin or dermal fillers, thread lifting, chemical peels, etc. Upon treatment completion, significant improvements were noted in multiple domains: Skin elasticity and hydration increased, areas of hyper-pigmentation were less extensive, and there were fewer visible wrinkles and pores.
CONCLUSION: Outcomes of the present article suggest how important is to customize facial anti-aging treatments. Nonsurgical treatments carried out progressively, involving the patient to perform at-home treatments in associations with outpatient procedures, let to achieve facial improvements in terms of increased skin elasticity and hydration, reduction of hyperpigmentation, wrinkles, and pores
Cross-linked hyaluronic acid filler hydrolysis with hyaluronidase: different settings to reproduce different clinical scenarios
Skin necrosis is the most severe complication arising from hyaluronic acid injection. To avoid
skin necrosis, hyaluronidase should be injected along the course of the involved artery, to
allow blood flow restoration. We evaluated the ability of hyaluronidase to degrade a
hyaluronic acid (HA) filler in two simulated clinical situations—a compression case and an
embolization case—to identify differences in the hyaluronidase injection. In the compression
case, a bolus of HA filler was directly soaked in hyaluronidase solution; in the embolization
case, a vein harvested from a living patient was filled with the same HA filler and then soaked
in hyaluronidase. We then evaluated the quantity of HA remaining after 2 hours. While we
found hydrolysis of hyaluronic acid in both cases, in the compression case, we detected
almost complete hydrolysis, whereas in the embolization case we observed a reduction of the
60%. Our results support the hypothesis that vessel compression can be resolved with only
one injection of hyaluronidase, while in the case of vascular embolization, repeated
perivascular injections should be performed owing to the reduction of hyaluronidase activity
An italian experience of a new personalized injective protocol (Botutouch) for botulinum toxin application in aesthetic medicine
Botulinum toxin typeA (BoNTA) is widely used in aesthetic medicine as primary treatment
to reduce facial wrinkles. Major unmet needs in the field of the injection techniques
include dilution factor, injected volume and site. Since 2013, an innovative
protocol has been developed in our clinic that works on a double dilution volume,
identifies the injection site according to the specific anatomical-functional characteristics
of each patient's musculature and applies a gentle massage to the injected area
to optimize the toxin spread in the muscle. We retrospectively retrieved medical
records of subjects that underwent aesthetic treatments in our outpatient Italian
clinics from 2013. In cobotulinum toxin A was used in double dilution (100 AU in
5 mL of physiologic solution) and followed by a gentle massage after the injection to
increase the distribution into the muscle. 197 subjects, most of them drug-naïve
(81.7%), underwent 869 BoNTA treatments. On average, higher total units and volumes
were applied in first visits or older subjects whereas the lower ones were preferred
in following visits or younger subjects. As perceived by the patients, the
effects of BoNTA lasted more than 6 months in about 38% of the cases. 95.9% of
subjects declared to be satisfied,whereas 5.2% of adverse events were observed
(4.8% hematoma, 0.2% ptosis, and 0.2% tenderness). To date, we offer a BoNTA
treatment with the aim to maximize the results and consequent patient's satisfaction,
with low incidence of complications
Rheological Investigation as Tool to Assess Physicochemical Stability of a Hyaluronic Acid Dermal Filler Cross-Linked with Polyethylene Glycol Diglycidyl Ether and Containing Calcium Hydroxyapatite, Glycine and L-Proline
(1) Background: Dermal fillers are commonly used in aesthetic practice and their rheological characterization is of much interest today, as well as the stability study of the finished formula against external stimuli of a different nature (biological and physicochemical). Rheological tools have been exploited to characterize the physiochemical behaviour of a hyaluronic acid (HA) based dermal filler subjected to different thermal conditions over time. The collected results provide an index of its rheological stability. (2) Methods: After a preliminary Amplitude sweep test, the Frequency sweep test was performed in order to study the stability of a HA dermal filler cross-linked with Polyethylene Glycol Diglycidyl Ether (PEGDE) and containing Calcium Hydroxyapatite (CaHA), Glycine and L-Proline subjected to different conditions. Also, a shear rate ramp test was performed in order to investigate the filler's flow behavior. (3) Results and Conclusions: G' (elastic modulus), G'' (viscous modulus) and consequentially tan delta (tangent of the phase angle) show a similar trend at different thermal conditions, underlining that the product is not affected by the storage conditions. The viscosity of the dermal filler decreases with an increasing shear rate, so a non-Newtonian shear thinning pseudoplastic behavior was demonstrated in all tested conditions
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