Following an L5-S1 SB Charité disc III implantation, a 37-year-old female patient developed intractable radicular pain in the left L5 distribution. The patient underwent a minimally invasive foraminotomy, and her symptoms improved significantly. However, following recurrence of radicular pain, she showed signs of an L5-S1 facet degeneration and recurrent nerve root compression from hypertrophie...

The unit root power envelope is used both as a benchmark and as a mechanism for generating feasible unit root tests, via quasi-differencing. This paper derives an explicit representation for the envelope, via direct saddlepoint expansions for the inversion formulae for both the null and alternative distributions of the set of point optimal tests. It is shown to be both more accurate and computa...

Root and Variaya proved the existence of codes that can communicate reliably over any linear Gaussian channel for which the mutual information exceeds the information rate of the code. In this paper we demonstrate that properly designed Low-Density Parity-Check (LDPC) codes are such codes and that their performance lies in close proximity to the Root and Variaya capacity for the linear Gaussian...

Fredholm Alternative is a classical tool of periodic linear equations, allowing to describe the existence of periodic solutions of an inhomogeneous equation in terms of the adjoint equation. A few partial extensions have been proposed in the literature for recurrent equations: our aim is to point out they have a common root and discuss whether such root gives rise to a general Fredholm–type Alt...

Objective: To compare differences in caries and periodontal scores between removable partial denture wearers and non wearers; abutment with non-abutment teeth in the wearers and wearers with “satisfactory” to those with “unsatisfactory” dentures. Methods: Ninety-six partially dentate patients were included in this study. Teeth were examined for caries and periodontal diseases. Removable partial...

Inflammatory lesions in the periapical tissues of the teeth are a result of root canal infection following partial or complete breakdown of the pulp. Infected root canals have a complex microbial flora consisting of cocci, rods, spirochaetes, filaments and fungi which may exist as a loose collection in mist canal lumen or as dense aggregates (biofilms) adhered to dentinal walls. The biofilm env...

Purpose. A standard coronectomy (intentional partial odontectomy) is recommended for mandibular third molar (MTM) extraction cases with a high risk of inferior alveolar nerve injury (IANI). However, complications such as inadvertent intraoperative root removal, post-op root migration, second molar (MSM) periodontal defects and others do exist. This report presents a new technique, the Modified ...

OBJECTIVE The purpose of this study was to investigate the ultramorphology of the root surfaces induced by mechanical instrumentation performed using conventional curettes or piezoelectric scalers when used single-handedly or with a combined technique. MATERIAL AND METHODS Thirty single-rooted teeth were selected and divided into 3 groups: Group A, instrumentation with curettes; Group B instr...

The standard procedure for the in ritro extraction of nitrate reductase from the tip region (0-2 cm) of the primary root of the maize (Zea mays L.) seedling indicated an activity of the enzyme approximately 5-fold higher than that obtained with an in vivo assay. In more mature regions of the primary root the ratio of in vitro to in vivo activity was much lower and in older seedlings was less th...