10 Apparatus for clinical diagnosis of any structural movement in dental structures, such as teeth and/or dental implants and their restorations; Dental handpieces; Dental instruments for use in clinical diagnosis of any structural movement in dental structures, such as teeth and/or dental implants and their restorations; Dental instruments, namely, probes for detecting cracks, fractures and defects; Probes for dental purposes; Dental instruments, namely, apparatus for detecting stability of dental implants; Dental apparatus for detecting stability of dental structures; Dental Instrument for detecting structural integrity, structural stability, defects, cracks, and fractures